Kolakoski Sequence in all languages in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 370th InigoK 🇺🇸 866 58 28ms 28 May 2023 370th jmerle 🇳🇱 866 58 29ms 3 Jul 2023 370th ndren 866 58 28ms 4 Aug 2023 370th FlorianCassayre 🇫🇷 866 58 18ms 13 Sep 2023 370th Kacarott 🇦🇺 866 58 30ms 13 Oct 2023 370th m42km 866 58 29ms 25 Nov 2023 370th StefanHabel 🇨🇦 866 58 12ms 20 Apr 2024 370th NickTheEASDude 🇺🇸 866 58 30ms 1 Jul 2024 370th namelessiw 866 58 29ms 27 Jul 2024 370th CaedenHarper 🇨🇦 866 58 28ms 5 Aug 2024 370th edsrzf 🇳🇿 866 58 18ms 22 Nov 2024 370th ryyyn 🇺🇸 866 58 28ms 6 Jan 2025 370th croc54 866 58 32ms 9 Jan 2025 370th andrewjc2000 866 58 28ms 11 Mar 2025 370th Mukundan314 866 58 31ms 27 Apr 2025 370th fkantelberg 866 58 25ms 12 Jul 2025 370th wuduculfre 866 58 28ms 22 Jul 2025 370th cros107 🇦🇺 866 58 10ms 16 Sep 2025 370th HETHAT 🇩🇿 866 58 30ms 24 Sep 2025 370th blaztoma 🇱🇹 866 58 28ms 30 Sep 2025 370th CornerMercury 🇬🇧 866 58 28ms 8 days ago 370th snoozingnewt 🇺🇸 866 58 19ms 34 hours ago 398th MeWhenI 🇻🇦 866 87 11ms 30 Oct 2021 399th lukegustafson 🇺🇸 865 53 128ms 17 Jun 2025 400th stefangimmillaro 865 79 90ms 21 Jun 2023 401st janbehrens 🇩🇪 864 43 3ms 18 Jan 2021 402nd Shanethegamer 🇺🇸 864 53 1,181ms 23 May 2021 402nd MeWhenI 🇻🇦 864 53 996ms 16 Mar 2022 404th GrayJoKing 🇦🇺 864 90 97ms 9 Jun 2022 405th DaCuteRaccoon 863 54 10ms 9 Dec 2022 406th bitsandbeyond 🇳🇱 861 42 174ms 27 Oct 2025 407th sisyphus-ppcg 🇦🇺 861 56 2ms 12 Jul 2022 408th ovs-code 🇩🇪 861 73 71ms 17 Sep 2023 408th error256 861 73 71ms 19 Jun 2024 410th DialFrost 🇸🇬 861 76 3ms 14 Sep 2024 411th primo-ppcg 🇹🇭 860 49 46ms 18 Jan 2022 412th GrayJoKing 🇦🇺 859 96 35ms 18 Jan 2023 412th lynn 859 96 42ms 6 Aug 2023 414th edsrzf 🇳🇿 857 53 740ms 31 Aug 2025 414th DialFrost 🇸🇬 857 53 715ms 1 Sep 2025 416th DialFrost 🇸🇬 857 56 466ms 15 Jan 2024 416th Steffan153 🇫🇮 857 56 584ms 16 Jan 2024 416th duckyluuk 🇳🇱 857 56 530ms 27 Mar 2024 419th Steffan153 🇫🇮 857 63 2ms 23 Mar 2023 419th stefangimmillaro 857 63 2ms 18 Sep 2023 419th xsot 🇸🇬 857 63 2ms 6 May 2025 419th KasperKivimaeki 🇫🇮 857 63 2ms 14 Aug 2025 423rd MeWhenI 🇻🇦 857 80 338ms 24 days ago 424th Irratix 🇳🇱 857 83 48ms 3 Jan 2022 424th ovs-code 🇩🇪 857 83 54ms 3 Jun 2024 424th DialFrost 🇸🇬 857 83 53ms 25 days ago 427th Lydxn 🇨🇦 855 100 27ms 13 Oct 2023 428th Lydxn 🇨🇦 854 63 2ms 15 Jan 2024 428th JayXon 🇺🇸 854 63 2ms 29 Jan 2024 428th rucin93 🇵🇱 854 63 2ms 13 days ago 431st primo-ppcg 🇹🇭 854 78 118ms 27 Mar 2021 431st Shanethegamer 🇺🇸 854 78 118ms 18 Mar 2023 431st Ripick 854 78 118ms 2 Jun 2025 434th sean-niemann 🇺🇸 854 80 92ms 21 Sep 2023 434th Yewzir 🇧🇪 854 80 77ms 16 Nov 2023 436th primo-ppcg 🇹🇭 854 195 12ms 2 Aug 2023 437th nwellnhof 🇩🇪 852 43 147ms 21 Oct 2021 437th primo-ppcg 🇹🇭 852 43 142ms 22 Apr 2022 439th MeWhenI 🇻🇦 852 84 43ms 29 Apr 2025 440th marcin7Cd 851 59 11ms 16 Jan 2021 440th rak1507 🇬🇧 851 59 11ms 20 Jan 2021 440th AlephSquirrel 851 59 10ms 13 May 2021 440th rschwa6308 🇺🇸 851 59 10ms 28 Jun 2021 440th NewDefectus 🇮🇱 851 59 12ms 25 Oct 2021 440th jacksonhenry3 851 59 13ms 21 Dec 2021 440th NicoAdams 851 59 12ms 21 Dec 2021 440th aksyristos 851 59 11ms 28 Feb 2023 440th BREMAUCY 🇫🇷 851 59 10ms 27 Apr 2023 440th 2011-Chan-Ethan 851 59 11ms 17 Jul 2023 440th MarcMush 🇫🇷 851 59 10ms 12 Feb 2024 First Prev 376–450 of 1,876 Next Last