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 Calendar 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 Multitap Input 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 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 Numbrix 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar 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 Multitap Input 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 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 Numbrix 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 383rd Mukundan314 866 58 36ms 27 Apr 2025 383rd fkantelberg 866 58 22ms 12 Jul 2025 383rd wuduculfre 866 58 30ms 22 Jul 2025 383rd HETHAT 🇩🇿 866 58 30ms 24 Sep 2025 383rd CornerMercury 🇬🇧 866 58 29ms 24 Nov 2025 383rd snoozingnewt 🇨🇦 866 58 18ms 1 Dec 2025 407th lukegustafson 🇺🇸 865 53 142ms 17 Jun 2025 408th stefangimmillaro 865 79 97ms 21 Jun 2023 409th janbehrens 🇩🇪 864 43 3ms 18 Jan 2021 410th Shanethegamer 🇺🇸 864 53 1,258ms 23 May 2021 410th MeWhenI 🇻🇦 864 53 1,291ms 16 Mar 2022 412th GrayJoKing 🇦🇺 864 90 130ms 9 Jun 2022 413th DaCuteRaccoon 863 54 10ms 9 Dec 2022 414th bitsandbeyond 🇳🇱 861 42 241ms 27 Oct 2025 415th primo-ppcg 🇹🇭 861 49 49ms 18 Jan 2022 416th sisyphus-ppcg 🇦🇺 861 56 2ms 12 Jul 2022 417th error256 861 72 62ms 11 Dec 2025 418th DialFrost 🇸🇬 861 76 3ms 14 Sep 2024 419th FortuiteMan 🇫🇷 860 84 12ms 25 days ago 420th edsrzf 🇳🇿 859 53 1,416ms 31 Aug 2025 420th DialFrost 🇸🇬 859 53 940ms 1 Sep 2025 420th xsot 🇸🇬 859 53 1,044ms 21 Dec 2025 423rd frosster 859 71 2ms 14 days ago 424th GrayJoKing 🇦🇺 859 96 33ms 18 Jan 2023 424th lynn 859 96 39ms 6 Aug 2023 426th DialFrost 🇸🇬 858 56 439ms 15 Jan 2024 426th Steffan153 🇫🇮 858 56 516ms 16 Jan 2024 426th duckyluuk 🇳🇱 858 56 475ms 27 Mar 2024 429th Steffan153 🇫🇮 858 63 2ms 23 Mar 2023 429th stefangimmillaro 858 63 2ms 18 Sep 2023 429th xsot 🇸🇬 858 63 2ms 6 May 2025 429th KasperKivimaeki 🇫🇮 858 63 2ms 14 Aug 2025 433rd MeWhenI 🇻🇦 857 80 473ms 7 Nov 2025 434th jared-hughes 857 84 58ms 31 Jul 2022 434th inventshah 857 84 59ms 17 Nov 2022 436th Lydxn 🇨🇦 857 100 25ms 13 Oct 2023 437th primo-ppcg 🇹🇭 857 195 11ms 2 Aug 2023 438th Lydxn 🇨🇦 854 63 2ms 15 Jan 2024 438th JayXon 🇺🇸 854 63 4ms 29 Jan 2024 438th rucin93 🇵🇱 854 63 2ms 19 Nov 2025 441st primo-ppcg 🇹🇭 854 78 122ms 27 Mar 2021 441st Shanethegamer 🇺🇸 854 78 125ms 18 Mar 2023 441st Ripick 854 78 172ms 2 Jun 2025 444th sean-niemann 🇺🇸 854 80 95ms 21 Sep 2023 444th Yewzir 🇧🇪 854 80 76ms 16 Nov 2023 446th snoozingnewt 🇨🇦 854 102 117ms 5 Dec 2025 447th nwellnhof 🇩🇪 852 43 144ms 21 Oct 2021 447th primo-ppcg 🇹🇭 852 43 137ms 22 Apr 2022 449th MeWhenI 🇻🇦 852 72 425ms 21 Nov 2021 450th MeWhenI 🇻🇦 852 84 40ms 29 Apr 2025 451st marcin7Cd 851 59 10ms 16 Jan 2021 451st rak1507 🇬🇧 851 59 11ms 20 Jan 2021 451st AlephSquirrel 851 59 11ms 13 May 2021 451st rschwa6308 🇺🇸 851 59 11ms 28 Jun 2021 451st NewDefectus 🇮🇱 851 59 12ms 25 Oct 2021 451st jacksonhenry3 851 59 13ms 21 Dec 2021 451st NicoAdams 851 59 12ms 21 Dec 2021 451st aksyristos 851 59 11ms 28 Feb 2023 451st BREMAUCY 🇫🇷 851 59 11ms 27 Apr 2023 451st 2011-Chan-Ethan 851 59 11ms 17 Jul 2023 451st MarcMush 🇫🇷 851 59 11ms 12 Feb 2024 451st albanian-laundromat 851 59 13ms 13 Apr 2025 451st plcc0 851 59 11ms 13 Jan 2026 451st CommandLeo 🇮🇹 851 59 12ms 23 days ago 451st pengu1n-master 851 59 11ms 12 hours ago 466th Shanethegamer 🇺🇸 851 67 2,205ms 27 Oct 2024 466th pardouin 🇫🇷 851 67 2,194ms 23 Dec 2024 468th kg583 🇺🇸 851 86 9ms 1 Sep 2025 469th ovs-code 🇩🇪 851 138 1,409ms 17 Feb 2025 470th albanian-laundromat 850 77 9ms 22 Oct 2025 471st MeWhenI 🇻🇦 849 65 7ms 24 Dec 2024 472nd ovs-code 🇩🇪 849 73 67ms 17 Sep 2023 473rd MeWhenI 🇻🇦 848 27 33ms 16 Mar 2022 474th sisyphus-ppcg 🇦🇺 848 89 117ms 25 Jan 2021 474th Bubbler-4 848 89 124ms 1 Jul 2021 476th CatsAreFluffy 847 33 48ms 31 Dec 2022 477th snoozingnewt 🇨🇦 847 44 102ms 38 hours ago 478th jared-hughes 847 55 10ms 31 Jul 2022 478th emgordon154 847 55 9ms 4 Mar 2025 480th primo-ppcg 🇹🇭 847 85 53ms 18 Jan 2022 First Prev 401–480 of 1,918 Next Last