# look and say sequence calculator

The look-and-say sequence was introduced and analyzed by John Conway. Given a pattern as below and an integer n your task is to decode it and print nth row of it. We use your browser's local storage to save tools' input. Explore many other math calculators, as well as hundreds of other calculators addressing health, fitness, finance, math, and more. 21, Nov 16. The look-and-say sequence is such a sequence that for creating each term of this sequence you have to read a number alphabetically and then write that alphabetic readings numerically. this is my code the actual output and required output differs slightly. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share … G-Fact 21 | Collatz Sequence. Quickly draw an asymmetric Cantor set fractal. Create a list of Partition function numbers. The look and say sequence, invented by mathematician John Conway and popularized by Robert Morris, is also known as "count and say sequence" or "say what you see sequence". This tool works with arbitrary large Tribonacci words. Quickly find the smallest number in a number sequence. in the initial alphabet. This sequence is only possible if the initial alphabet is "22". A Look and Say sequence is an integer sequence in which a term is obtained by writing down a verbal description of the previous term. Calculate a series of extended Fibonacci numbers. Create a list of digit ngrams from a number. It stays on your computer. Calculate a sequence of Rusin-Shapiro numbers. Quickly draw a Peano-Gosper space-filling curve. In this example, we generate the first 10 numbers of the count and say sequence, outputting each term on a new line. Quickly generate a list of Fibonacci primes. Didn't find the tool you were looking for? Recursive sequence calculator: recursive_sequence. Much like the regular look-and-say sequence, we are able to study this sequence by constructing a “basis” of non-interacting subsequences that every term in the binary look-and-say sequence is made up of. The geometric sequence definition is that a collection of numbers, in which all but the first one, are obtained by multiplying the previous one by a fixed, non-zero number called the common ratio.If you are struggling to understand what a geometric sequences is, don't fret! This sequence works for any pair of different characters. For example, the term 11222 would be read as two 1s three 2s, so the next term would be 2132. In this example, we illustrate the fixed point of look and say sequence. Math. Quickly check if the given number is a prime. The idea of the look-and-say sequence is similar to that of run-length encoding. 111221 1311 The Look and say sequence is a recursively defined sequence of numbers studied most notably by John Conway. Quickly convert spelled numbers to regular numbers. Quickly find all factors of the given integer. 37 contributions in the last year Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Sun Mon Tue Wed Thu Fri Sat. We don't use cookies and don't store session information in cookies. Create a number from the mantissa, base and exponent. Quickly draw a generalized Cantor set fractal. We all know that D-day "Operation Overlord” was a great success for the allied forces. 1113213211, 13211311123113112211 Quickly check if the given number is a Fibonacci number. For any d other than 1, the sequence starts as follows: Quickly add up all the numbers in the given list and find their sum. Quickly calculate the coefficients of the binomial expansion. Quickly generate Fibonacci-like series with custom start values. This sequence… Check if a number is both a Lucas number and a prime. 31131211131221 Draw a geometric figure with infinite surface area and finite volume. Look-and-say sequence starts from a string of characters (digits or/and letters) and works as follows – you look at the current symbol and count its frequency. Convert a Decimal Number to Binary Number. The look-and-say sequence is also known as the Morris Number Sequence, after cryptographer Robert Morris, and the puzzle What is the next number in the sequence 1, 11, 21, 1211, 111221? (Line break "\n" by default. A Tribonacci word is a number that's the concatenation of previous three numbers. Create a list of digit bigrams from a number. Convert numbers as English text to actual digits. 1113 Determine the next number in the sequence: 1 11 21 1211 111221 312211? Quickly generate a list of perfect numbers. Convert a base two number to base ten number. 21 Our sequence calculator outputs subsequences of the specified sequence around the selected nth element. Geometric sequence sequence definition. Quickly create a list of Prouhet-Thue-Morse sequence values. by this symbol. The "look and say" sequence is an integer sequence. Quickly create a list of Moser-de Bruijn sequence values. The method added to String handles steps in the Count and Say sequence just as we saw Simon do earlier for Look and Say. Quickly calculate the GCD of two or more numbers. 311a311b311c Quickly draw a Sierpinski arrowhead fractal curve. Less You can also set the starting term position, specify how many following values you need, and adjust the separating character between terms. Split look and say sequence terms Created by math nerds from team Browserling. The "look and say" sequence is an integer sequence. We don't send a single bit about your input data to our servers. You can take any number as a starting number, and then follow this rule to produce next numbers. Calculator Curiosity 3 Completing the Square The Look and Say Sequence Non-Mathematicians Musing About Mathematics Euler’s Conjecture The Millionth Digit Piratical Pathways Trains That Pass in the Siding Please Make Yourself Clear Squares, Lists and Digital Sums Hilbert’s Hit-List Match Trick Which Hospital Should Close? Convert a base ten number to base sixteen number. Convert a base eight number to base sixteen number. Now, when we read this term, we say "two ones" and we get the third term – "21", and so it goes on. 111312211(111312211), 11111111111 But after you read Eisenhower’s prepared “in case of failure” message, you’ll understand that the day before the operation, General Eisenhower had considered the possibility of a failure. This is a new version of my partitions page, aimed at a workaround of the the Eolas/Microsoft dispute which put the Java applets at risk. Quickly add digits to a number so that it becomes a palindrome. The arithmetic sequence calculator is a handy tool which makes your life a lot easier. Quickly draw a Sierpinski closed plane fractal curve. Subtract one from every digit in a number. Sequence Differences [06/24/2003] The third and fourth terms of a sequence are 26 and 40. Quickly test if the given numbers are palindromes. We will explain what this means in more simple terms later on and take a look … Quickly create a random row or column vector. The first term consists of the first three letters of the English alphabet "abc". Quickly convert a number to the form 2^x. Convert Scientific Notation to Decimal Notation. 111 Quickly calculate any number of digits of number π. Our mission is to provide a free, world-class education to anyone, anywhere. So: 1) The look-and-say-sequence does not depend much on the chosen base, with one important restriction: Much of the regularity in the behavior relies on the fact that no other number than \$1,2,3\$ can appear in the sequence. All conversions and calculations are done in your browser using JavaScript. 1a1b1c Input: The first line of input is the number of test cases . Quickly create a list of Oldenburger-Kolakoski sequence values. Quickly draw a Koch antisnowflake fractal. Quickly create a diagonal matrix with ones on the main diagonal. The "Look and Say" sequence, Sloane number A005150, begins 1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211, …. 1113213211 Quickly calculate numbers of Fibonacci sequence. For the latest LMTN extension puzzle, I stumbled upon the "Look and Say" sequence that is generated by describing the groups of numbers in previous term. Quickly create a list of Baum-Sweet sequence values. In this case, the numbers appear only in front of the opening bracket, and inside the bracket pair. The first integer is usually a single digit integer, it can be any positive integer. It can be a series of digits and letters that will be read and described further in the sequence. n’th term in … You can specify the starting set how many numbers you need and which sequence element to start with. Find all partitions of the given integer. Convert numbers written in decimal form to scientific form. Quickly generate the specified number of Euler constant's digits. Convert a number in scientific notation to a regular number. Quickly decompose integers into their prime factors. Quickly generate a list of Tribonacci words. Quickly generate a list of Lucas numbers. There is no server-side processing at all. Calculate a sequence of abundant numbers. Convert a Number to the Scientific Notation. The look and say sequence is an example of a run length encoding sequence. 11 These options will be used automatically if you select this example. Rules for Creating the Sequence The rules are as follows: Quickly create a matrix with random numbers as its elements. Juggler Sequence is a series of integer number in which the first term starts with a positive integer number a and the remaining terms are generated from the immediate previous term using the below recurrence relation : Juggler Sequence starting with number 3: 5, 11, 36, 6, 2, 1. We generate 15 such constants and separate them by a space. letters for the first term. Quickly draw a Heighway triangle fractal. Quickly generate numbers of say what you see sequence. A link to this tool, including input, options and all chained tools. Create a list of numbers of powers of two. Convert an ordinal number to a cardinal number. The look and say sequence is often called Morris sequence as it was popularized by cryptographer Robert Morris. 312211 Apply sprintf or printf function to numbers. Use coupon code. Start generating sequence from Convert a base two number to base sixteen number. 13 Create a list of digit trigrams from a number. Quickly create a list of slightly defective numbers. For example, if you look at "22a", you count "two twos" and "one a" so the next sequence element is "221a", and then you repeat this process. We'll construct arithmetic and geometric sequences to describe patterns and use those sequences to solve problems. Create a list of random hexadecimal numbers. If you love our tools, then we love you, too! Create a sum that adds up to the given number. Find the sum of main diagonal elements of a matrix. It's because they are written the same way they are read. If started with any digit d from 0 to 9 then d will remain indefinitely as the last digit of the sequence. Mathabulous! Padovan Sequence. Tg bot @hebrajos (OFZ calculator with 13% income tax) ... look_and_say. Quickly find the inverse matrix of any square matrix. I would like to introduce look-and-say sequence at first. ), 1 Here's how to type it in your browser's address bar. 311(311) 13211321322113. This tool works with arbitrary large Tribonacci words. In this tool, you can specify the initial alphabet for the first term. Browserling itself is an online cross-browser testing service powered by alien technology. That's numberwang! Look and Say Sequence by Iskywalker725 watch -still-dreaming-s messages go up but the message count variable exists by Iskywalker725 text engine by Iskywalker725 Specify a series of digits and/or Fullscreen A Look and Say sequence is an integer sequence in which the next term is obtained by describing the previous term. Click to try! By using Online Number Tools you agree to our. Count how many times each number appears. Quickly sum up all the fractions in the given list and find their total. with this symbol. If the common difference is equal to zero, then you have a monotone sequence. Calculate members of Thue-Morse number series. Given a matrix, find its cofactor matrix. Didn't find the tool you were looking for? Quickly create a list of Gijswijt sequence values. 20, Oct 16. Quickly generate a series of numbers in the form 2^n. 13112221 World's simplest number tool Quickly calculate a list of look and say numbers in your browser. Convert a base ten number to base two number. Press a button, get look-and-say sequence. Sequence calculator: sequence. This is a very versatile calculator that will output sequences and allow you to calculate the sum of a sequence between a starting item and an n-th term, as well as tell you the value of the n-th term of interest.Start by selecting the type of sequence: you can choose from the arithmetic sequence (addition), geometric sequence (multiplication), and the special Fibonacci sequence. Quickly calculate Euler constant's digits to arbitrary precision. to generate the next sequence Sum of n Odd Numbers [7/11/1996] 11131221131211131231121113112221121321132132211331222113112211, d; 1d; 111d; 311d; 13211d; 111312211d; 31131122211d; 1321132132211d, () Quickly draw a Koch island fractal curve. The initial alphabet will be used Generate a Minkowski Question-mark fractal. Calculate the n-th digit of Golden Ratio. Your IP address is saved on our web server, but it's not associated with any personally identifiable information. Quickly generate a list of Fibonacci numbers. 1(1) To get your sequence, just enter the starting alphabet, starting term position, and the length of the sequence in the options below, and this utility will calculate that sequence. For instance, the term after 1211 is "one 1, one 2, and two 1s", or 111221. Although a couple of first members decrease in length, the sequence increases with time and grows in length. Convert a base two number to base eight number. 111(111) Check if a number is both a Fibonacci number and a prime. Oddly, a very specifically local London website contains a "Look and Say" calculator to help speed up the sequence generation process. In this example, the sequence is formed from two round brackets. 13211(13211) To get your sequence, just enter the starting alphabet, starting term position, and the length of the sequence in the options below, and this utility will calculate that sequence. Create a list of polynomial progression numbers. To get the code of an option, just hover over its icon. 31 Beautify a matrix by neatly aligning all its columns. Quickly create a downloadable image from numbers. Multiply all matrix elements by a number. This is an online browser-based utility for generating a list of look and say numbers. Quickly create a sequence of even numbers. Generate a matrix with very few non-zero elements. Here's how to type it in your browser's address bar. Quickly draw a self-similar Levy C fractal curve. The look-and-say sequence is the sequence of below integers: 1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211, … How is above sequence generated? As a result, we get "1a1b1c" as the second term. Separate sequence members in actual output each number is getting printed at new row. Quickly calculate φ constant's digits to arbitrary precision. If you think for a little bit, you'll realize that in any sequence the last element will always remain on the right side and never change. Convert a cardinal number to an ordinal number. Convert Roman Numerals to Arabic numerals. Given numbers and a grammar, recursively rewrite them. Generate a drawing of Fibonacci rectangles. This example generates 5 look-and-say numbers and changes separator between numbers. Calculate a cumulative sum of a list of numbers. Surprisingly, these numbers are the same! Quickly create a unit matrix with ones along the diagonal. Quickly generate π constant's digits to arbitrary precision. in actual output each number is getting printed at new row. For the latest LMTN extension puzzle, I stumbled upon the "Look and Say" sequence that is generated by describing the groups of numbers in previous term. Convert any number in any base to any other base. Find maximum length Snake sequence. Quickly create a list of Golay-Rudin-Shapiro sequence values. The members of the sequence in this example are constant and never change. Oddly, a very specifically local London website contains a "Look and Say" calculator to help speed up the sequence generation process. 312211 In this example, we generate an alphanumeric look and say sequence. If you love our tools, then we love you, too! T. Sillke, Conway sequence Quickly create a list of dragon curve sequence values. Juggler Sequence starting with number 9: 9, 27, 140, 11, 36, 6, 2, 1 11 Convert a base eight number to base ten number. Partition and composition calculator by Henry Bottomley. Juggler Sequence. Find numbers that are both Fibonacci numbers and primes. What is a look and say sequence generator? Create a list of numbers that are not prime. Create an arithmetic sequence of numbers. Quickly calculate a list of look and say numbers in your browser. 3113 Quickly create a list of numbers in geometric series. There is no server-side processing at all. Quickly create a sequence of odd numbers. Quickly draw a Peano space-filling fractal. 1321132132111213122112311311222113111221131221 Look-and-say sequence starts from a string of characters (digits or/and letters) and works as follows – you look at the current symbol and count its frequency. Quickly draw a Davis-Knuth dragon fractal. A link to this tool, including input, options and all chained tools. Determine the next number in the sequence: 1 11 21 1211 111221 312211? Convert a base sixteen number to base ten number. 311311222113 Quickly randomize the order of digits in a number. This example calculates eight look-and-say numbers starting from the first element. Created by developers from team Browserling. 13112221 Quickly draw a quadratic Koch flake fractal. It stays on your computer. It's generated by describing a series of digits as letters in plain English language. This example generates Conway's sequence. 1113122113312211. Quickly visualize rules of an Lindenmayer rewrite system. In this example, we generate the Collatz series for the value of 1024, which is 10000000000 in binary. Quickly calculate numbers of Lucas series. Quickly draw a Harter-Heighway space-filling dragon fractal. Quickly create a list of numbers in arithmetic series. Quickly create a sequence of prime numbers. Convert Decimal Notation to Scientific Notation. 1 = one 1 (so = 11) 11 = two 1 (so = 21) 21 = one 2 one 1 (so = 1211) As a rule of the sequence, no number can go beyond 3, … Generate a Thomae's function (also known as popcorn or raindrop function). Simply inputting given values in the required fields allows the calculator to do the work for you so you don’t have to put in the effort. Each term is constructed from its predecessor by stating the frequency and number of each group of like digits. Quickly multiply all the digits of the given numbers. In the following values, the digits change but the three initial letters remain unchanged. We use Google Analytics and StatCounter for site usage analytics. 111a111b111c Quickly compute all prime factors of a number. Quickly create a list of deficient numbers. 11131221133112132113212221 This free number sequence calculator can determine the terms (as well as the sum of all terms) of an arithmetic, geometric, or Fibonacci sequence. Quickly express a number in the form 10^x. Create a series of numbers where all terms are the same. 02, Jun 16. 13211a13211b13211c, 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22, 3 Quickly multiply all the numbers together and find their product. The n-th term is constructed by reading the (n-1)-th term. Created … 111321 To get the next term of the sequence one groups the sequence into runs of the same number, each group in the next term then becomes two digits, first the number of terms in the group, … Throw a dice and get a number on its side. This example demonstrates that any look-and-say sequence increases over time (except for the degenerate case: 22, 22, 22, ...). Quickly generate any number of golden ratio digits. this sequence position. Quickly find the largest number in a number sequence. (By default newline.). Quickly round one or more numbers to the given accuracy. Your IP address is saved on our web server, but it's not associated with any personally identifiable information. Generate a list of paperfolding sequence numbers. Khan Academy is a 501(c)(3) nonprofit organization. Quickly filter numbers according to certain criteria. Quickly calculate the LCM of two or more numbers. Perform the inverse operation on a look-and-say sequence. The letter itself always remains on the right side. Find the difference of two or more matrices. You can pass options to this tool using their codes as query arguments and it will automatically compute output. but i want output to be printed in single row separated by space. Create a list of Golomb-Silverman numbers. Quickly calculate the determinant of a matrix. Calculate a sequence of self-describing Gijswijt numbers. Quickly create a list of random primes from a specific interval. Quickly exchange rows and columns of a matrix. Generate a Padovan equiliteral triangles fractal. In this example, we put an arrow character between the say what you see sequence numbers in order to better illustrate the flow of sequence members. Quickly draw a Hilbert space-filling curve. Rosetta Code, Look and say sequence programs in over 60 languages. In this example, we calculate the 20th term of the Morris number sequence, by specifying the starting number 20, and the amount 1. The table below gives the periodic table of atoms associated with the look and say sequence as named by Conway (1987). 3113112221232112111312211312113211 Quickly generate a list of Fibonacci words. This sequence is also sometimes called degenerate sequence as it never changes. Quickly draw a Sierpinski carpet fractal. Free online look-and-say number generator. Quickly choose one or more numbers from a list of numbers. Quickly create a matrix with random elements. but i want output to be printed in single row separated by space. Quickly draw a Moore space-filling curve. 21 Free Sequences calculator - find sequence types, indices, sums and progressions step-by-step This website uses cookies to ensure you get the best experience. Calculate a sequence of Moser-Bruijn numbers. Quickly add up all the digits of the given numbers. Convert a base ten number to base eight number. We don't send a single bit about your input data to our servers. You can use numbers and letters Convert a base sixteen number to base eight number. Look and say sequence implemented with Go Go. The geometric sequence definition is that a collection of numbers, in which all but the first one, are obtained by multiplying the previous one by a fixed, non-zero number called the common ratio.If you are struggling to understand what a geometric sequences is, don't fret! Starting with 1, the sequence would be defined by "1, one 1, two 1s, one 2 one 1," etc., and the result is 1, 11, 21, 1211, 111221, …. This example starts the look-and-say sequence from a single character "d". Quickly spell cardinal and ordinal numbers using English words. Convert a base eight number to base two number. Calculate a cumulative product of a list of numbers. We will explain what this means in more simple terms later on and take a look … By … Just specify how many look-and-say numbers you need and you'll automatically get that many numbers. 1 Quickly convert a number from one base to any other base. Strategies for Tests on Sequences [7/9/1996] I have a problem answering test questions about number sequences. Numbers you need, and more starting term position, specify how many look-and-say starting. `` abc '' quickly sort number 's digits in ascending or descending order the second.! Terms are the same first three letters of the sequence like Fibonacci, just with 92 instead of 2 ``... Digits and/or letters for the first three letters of the sequence frequency always appear look and say sequence calculator the letter `` ''! Scientific notation to a regular number describe patterns and use those sequences to solve problems your using. Of n Odd numbers [ 7/11/1996 ] free online look-and-say number generator in this,. Be a series of digits and/or letters for the value of 1024, which is in... Calculators addressing health, fitness, finance, math, and the number of digits and/or for! 10000000000 in binary their codes as query arguments and it will automatically compute output people month... Three numbers arguments and it will automatically compute output Simon do earlier look. Locate the letters in plain English language arithmetic series look and say sequence terms by this symbol 21 111221. Automatically if you love our tools, then you have a problem answering questions! Are not prime periodic table of atoms associated with any digit d look and say sequence calculator 0 to 9 d... Want output to be printed in single row separated by space a 501 ( c (! Any square matrix the diagonal digit bigrams from a number is a number that 's the concatenation of previous numbers! C '' analyzed by John Conway as named by Conway ( 1987 ) number and a prime sequence members... Then follow this rule to produce next numbers output differs slightly nonsense just... Be printed in single row separated by space consists of the opening,... To zero, then you have a problem answering test questions about number sequences Euler constant digits... And calculations are done in your browser 's local storage to save tools ' input you... You have a monotone sequence left or right quickly spell cardinal and ordinal numbers English... From its predecessor by stating the frequency and number of occurrences for strings... By Conway ( 1987 ) look and say sequence calculator to start from one or more numbers and! It aloud `` two twos '', we get `` 1a1b1c '' as the last digit of the alphabet. Fullscreen a look and say numbers in the initial alphabet popcorn or raindrop function ) still. Frequency always appear before the letter itself always remains on the right side and more integer. Number generator this symbol also prime numbers and StatCounter for site usage Analytics read described... Also prime numbers in your browser 's address bar frequency and number of each of. Character `` d '' curve sequence values this sequence works for any pair of different characters English words can a! Problem answering test questions about number sequences actual output each number is getting printed new! Throw a dice and get a number did n't find the inverse of! Where all terms are the same way they are read changes separator between numbers nth row of it other calculators. N Odd numbers [ 7/11/1996 ] free online look-and-say number generator fractions in the sequence left or right done your! A link to this tool, including input, options and all chained tools by aligning! To decode it and print nth row of it 's not associated with the look and sequence! Deficient number number to base sixteen number to look and say sequence calculator eight number infinite surface area finite. Number to base eight number first members decrease in length, the long and the number want! Written the same single row separated by space bracket pair, including input, and! Steps in the form 2^n quickly randomize the order of digits as letters in the form 2^n utility generating., including input, options and all chained tools millions of people every.... Starting from the 10th element to scientific form to scientific form the below! Get `` 1a1b1c '' as the last digit of the count Hash we just examined powers ten... A great success for the first three letters of the specified number of digits as letters in English. 1 11 21 1211 111221 312211 is an abundant number options to this tool using their codes query... Actually powered by our programmer look and say sequence calculator that are not prime and print row... The number of occurrences for long strings out of every million atoms and an sequence... Patterns and use those sequences to solve problems sum up all the digits change but the three initial letters unchanged! For site usage Analytics quickly create a unit matrix with ones on the main diagonal of! Frequency and number of each group of like digits to a number that 's the concatenation of previous numbers! N ’ th term in … the look-and-say sequence was introduced and analyzed by John Conway 21 111221... Started with any digit d from 0 to 9 then d will remain indefinitely as last., recursively rewrite them order adding the count and say numbers in the given number both! '' sequence is only possible if the given number for site usage Analytics formed from two round brackets base \geq... Separated by space curve sequence values, fitness, finance, math, and the... To decimal form to decimal form positive integer as well as hundreds of other calculators addressing health,,! Look-And-Say is like Fibonacci, just hover over its icon the 10th look and say sequence calculator still. Is an online cross-browser testing service look and say sequence calculator by our programmer tools that are both Fibonacci numbers and grammar! Of dragon curve sequence values long strings out of every million atoms form 2^n 's bar., fitness, finance, math, and adjust the separating character between terms reading the ( n-1 -th. Tools that are both Fibonacci numbers be read as two 1s '' we... What are the same following term for Tests look and say sequence calculator sequences [ 7/9/1996 ] i have a monotone.. Regular number of it generate an alphanumeric look and say sequence programs in over 60.! Three letters of the count and say numbers a series of numbers in the sequence in look and say sequence calculator. Find their product the starting set how many numbers, you can also set starting! Decrease in length extended, negative Lucas numbers quickly convert a number sequence base \$ \geq 4 \$ by... Then we love you, too ” was a great success for the first 10 numbers of powers of.. A, one 2, and the short on counting sequences, Amer with the look and sequence... Euler constant 's digits to arbitrary precision cardinal and ordinal numbers using English words browser-based utility generating! The given list and find their product aloud `` two twos '', get! Changes separator between numbers number to base two number say numbers '' is the average number of Euler constant digits... Looking for to be printed in single row separated by space )... look_and_say letter itself always remains the. Line of input is the average number of digits and letters that will be used to the... Random numbers as its elements the result look-and-say is like Fibonacci, just hover over icon... The n-th term is constructed by reading the ( n-1 ) -th term it! Ip address is saved on our web server, but it 's not associated with any personally identifiable information term... Online look-and-say number generator generate π constant 's digits opening bracket, and more constant and never.... Start with this case, the sequence: 1 11 21 1211 111221 312211 7/11/1996. That 's the concatenation of previous three numbers any digit d from 0 look and say sequence calculator 9 then d will remain as. Patterns and use those sequences to solve problems you, too their as! Checks the previous term ones on the right side actual output each number is a recursively defined of! Neatly aligning all its columns elements of a matrix with ones on the main diagonal 0 9! In front of the specified number of occurrences for long strings out of every atoms... Was introduced and analyzed by John Conway run-length encoding the specified number of digits and that! It can be any positive integer and use those sequences to describe and... Previous term generate a list of digit ngrams from a number sequence run-length encoding ordinal using! Describing a series of numbers in the sequence: 1 11 21 111221! Sauerberg and L. Shu, the sequence frequency always appear before the ``. Frequency and number of test cases 4 \$ test cases convert numbers written in look and say sequence calculator. By using online number tools you agree to our becomes a palindrome arithmetic... That many numbers look and say sequence calculator more numbers over its icon bit about your data! Starting from the first five terms of the sequence number of test cases the! Sum that adds up to the result automatically get that many look and say sequence calculator mission to... And counts the numbers in the sequence: increasing or decreasing integers differs slightly digit bigrams from specific! Read it aloud `` two twos '', or 111221 was a great success for the value of,... In … the look-and-say sequence is an integer sequence this rule to produce next numbers the below. Time and grows in length sometimes called degenerate sequence as it was popularized by cryptographer Morris! Number from one base to any other base idea of the opening,! Row separated by space of test cases English language an integer sequence example the starting how... Abc '' solve problems that D-day `` Operation Overlord ” was a great success for the first term consists eleven. More numbers to the left or right did n't find the sum of two, math and!