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 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 Multitap Input 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 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 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 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 Multitap Input 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 561st KasperKivimaeki 🇫🇮 818 88 54ms 27 Nov 2025 562nd inventshah 817 59 2ms 18 May 2022 562nd MeWhenI 🇻🇦 817 59 2ms 18 May 2022 564th m-tkach 🇺🇦 817 101 28ms 18 Jan 2024 565th Shanethegamer 🇺🇸 816 84 435ms 25 Sep 2025 566th Yewzir 🇧🇪 815 61 111ms 16 Nov 2023 567th ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 567th inventshah 815 66 2ms 22 Oct 2023 569th BREMAUCY 🇫🇷 814 59 433ms 20 Feb 2024 570th duckyluuk 🇳🇱 814 70 2,253ms 28 Oct 2024 570th jkelly467 814 70 2,455ms 26 days ago 572nd Steffan153 🇫🇮 814 90 4ms 10 Feb 2023 573rd emgordon154 814 107 109ms 4 Dec 2025 574th janlelis 811 52 43ms 18 Jan 2021 574th hiddicop 🇸🇪 811 52 41ms 29 Jan 2021 574th prplz 🇦🇺 811 52 41ms 22 Apr 2021 574th anter69 🇭🇺 811 52 40ms 14 Jan 2022 574th OhmNomNom 811 52 81ms 12 Oct 2022 574th olleicua 🇺🇸 811 52 38ms 25 Feb 2024 574th emgordon154 811 52 38ms 26 Nov 2024 581st Shanethegamer 🇺🇸 811 108 246ms 26 Sep 2021 582nd vezzick 810 62 12ms 12 Mar 2021 582nd schachmattmatt 810 62 11ms 18 Aug 2021 582nd cooljoseph1 810 62 20ms 6 May 2022 582nd fredrik-bakke 🇳🇴 810 62 18ms 29 Sep 2022 582nd nkoppel 810 62 13ms 19 Oct 2022 582nd AodhanDalton 810 62 10ms 4 Nov 2022 582nd nstearns96 🇬🇧 810 62 17ms 28 Nov 2022 582nd adamnielson42 🇺🇸 810 62 11ms 10 Jan 2024 582nd jbjd 810 62 11ms 2 Mar 2024 582nd wh3n3v3r 🇨🇿 810 62 10ms 12 Nov 2024 582nd jacekwladzinski 810 62 12ms 4 Oct 2025 582nd Mabeloid 🇳🇴 810 62 13ms 26 Oct 2025 594th Steffan153 🇫🇮 810 79 1,437ms 23 Mar 2023 594th Yewzir 🇧🇪 810 79 38ms 16 Nov 2023 596th Shanethegamer 🇺🇸 810 96 87ms 9 Jun 2022 597th GolfingSuccess 🇬🇷 808 81 9ms 9 Sep 2022 598th m-tkach 🇺🇦 808 89 57ms 25 Apr 2022 598th MeWhenI 🇻🇦 808 89 54ms 8 May 2022 600th emgordon154 807 67 2ms 22 Apr 2025 601st Shanethegamer 🇺🇸 807 76 417ms 13 Dec 2021 602nd Dazza314 🇬🇧 806 24 3ms 16 Apr 2021 603rd m-tkach 🇺🇦 806 106 25ms 25 Apr 2022 604th ArmaanAS 804 58 11ms 4 Apr 2021 604th itsh01 804 58 9ms 18 Nov 2021 606th Steffan153 🇫🇮 803 60 2ms 6 May 2023 607th stefangimmillaro 803 80 119ms 23 Sep 2023 608th emgordon154 803 85 7ms 3 Jan 2025 609th m-ender 🇩🇪 803 91 153ms 23 Apr 2021 610th Shanethegamer 🇺🇸 803 94 117ms 25 Jan 2021 611th DaDerpDuck 802 76 1ms 20 Jan 2021 612th prplz 🇦🇺 802 83 125ms 10 Jul 2024 613th MeWhenI 🇻🇦 800 50 3ms 11 Nov 2022 614th GolfingSuccess 🇬🇷 800 69 8ms 24 Dec 2024 615th NewDefectus 🇮🇱 799 35 47ms 25 Jan 2022 616th MeWhenI 🇻🇦 799 88 416ms 28 Feb 2022 617th Yewzir 🇧🇪 799 90 56ms 14 Oct 2023 618th SirBogman 🇺🇸 797 46 228ms 22 Oct 2021 619th apourchot 797 63 18ms 13 Feb 2021 619th neihousaigaai 797 63 12ms 10 Apr 2021 619th lechevalier 797 63 10ms 9 Aug 2021 619th yzhs 🇩🇪 797 63 10ms 7 Jun 2022 619th commandblockguy 🇺🇸 797 63 12ms 19 Sep 2022 619th fourth-bit 797 63 10ms 21 Nov 2022 619th FortuiteMan 🇫🇷 797 63 24ms 8 Sep 2023 619th ssbhatt4321 797 63 26ms 14 Oct 2023 627th DialFrost 🇸🇬 796 53 38ms 2 Feb 2023 627th SirBogman 🇺🇸 796 53 39ms 10 Jun 2024 629th Yax42 🇫🇷 796 77 409ms 5 May 2025 630th tobeannouncd 796 82 124ms 8 Jan 2024 631st GrayJoKing 🇦🇺 795 68 2ms 21 Jan 2021 631st m-tkach 🇺🇦 795 68 5ms 25 Apr 2022 631st MeWhenI 🇻🇦 795 68 2ms 11 Nov 2022 634th primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 635th TrueBoxGuy 795 95 115ms 24 Sep 2025 636th GrayJoKing 🇦🇺 794 86 9ms 15 Aug 2023 636th Shanethegamer 🇺🇸 794 86 10ms 11 Jan 2024 638th MichalMarsalek 🇨🇿 793 84 127ms 6 Jan 2023 639th SirBogman 🇺🇸 791 31 51ms 7 Oct 2022 640th janbehrens 🇩🇪 791 91 57ms 20 Nov 2022 First Prev 561–640 of 1,903 Next Last