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 481st KatieLG 🇬🇧 842 57 464ms 15 Jan 2024 481st kg583 🇺🇸 842 57 377ms 15 Jan 2024 481st GrayJoKing 🇦🇺 842 57 395ms 15 Jan 2024 481st MeWhenI 🇻🇦 842 57 445ms 17 Jan 2024 481st Yewzir 🇧🇪 842 57 496ms 29 Feb 2024 481st SirBogman 🇺🇸 842 57 433ms 10 Jun 2024 481st lifthrasiir 🇰🇷 842 57 387ms 2 Dec 2024 481st GolfingSuccess 🇬🇷 842 57 462ms 24 Dec 2024 481st emgordon154 842 57 454ms 23 Apr 2025 481st Babafaba 842 57 478ms 19 Nov 2025 481st CaedenHarper 🇨🇦 842 57 447ms 9 Dec 2025 492nd MeWhenI 🇻🇦 842 76 37ms 16 Jun 2022 493rd ovs-code 🇩🇪 842 87 106ms 8 Mar 2024 494th fuzzylojik-golf 🇺🇸 841 23 3ms 6 Sep 2025 495th btnlq 841 43 252ms 26 Jan 2021 495th primo-ppcg 🇹🇭 841 43 283ms 25 May 2021 497th primo-ppcg 🇹🇭 841 87 29ms 25 Jan 2023 498th MeWhenI 🇻🇦 840 87 11ms 30 Oct 2021 499th acotis 839 90 126ms 3 Oct 2025 500th Yewzir 🇧🇪 839 132 1,746ms 27 Apr 2024 500th DialFrost 🇸🇬 839 132 1,663ms 12 hours ago 502nd AGoyet 837 60 12ms 29 Jun 2022 502nd jakobkordez 🇸🇮 837 60 15ms 8 Nov 2022 502nd betaveros 837 60 18ms 31 Dec 2022 502nd AlexanderFair 837 60 10ms 23 Jun 2023 502nd Andriamanitra 🇫🇮 837 60 13ms 20 Jul 2023 502nd dranjohn 837 60 49ms 15 Sep 2023 502nd SB-945 837 60 10ms 20 Feb 2024 502nd inverseLorentz 🇦🇺 837 60 10ms 9 Apr 2024 502nd 051 🇸🇬 837 60 14ms 1 Aug 2024 502nd vgamula 🇺🇦 837 60 31ms 28 Jul 2025 502nd LuisGoncalves05 🇵🇹 837 60 10ms 29 Jul 2025 502nd solisolu 837 60 11ms 16 days ago 514th GrayJoKing 🇦🇺 837 84 462ms 28 Feb 2022 515th GrayJoKing 🇦🇺 834 55 135ms 6 Aug 2024 516th GrayJoKing 🇦🇺 833 57 36ms 5 Sep 2024 517th MeWhenI 🇻🇦 832 56 11ms 8 Jun 2022 517th Yewzir 🇧🇪 832 56 9ms 16 Nov 2023 517th voytxt 🇨🇿 832 56 9ms 25 Jan 2025 517th targrik 832 56 9ms 21 Feb 2025 521st sean-niemann 🇺🇸 832 77 41ms 18 Dec 2023 522nd kritixilithos 831 58 3ms 29 May 2024 523rd prplz 🇦🇺 831 65 2ms 24 Jan 2021 523rd sisyphus-ppcg 🇦🇺 831 65 2ms 25 Jan 2021 523rd inventshah 831 65 2ms 17 Nov 2022 523rd 09cf 831 65 2ms 24 Sep 2023 523rd DialFrost 🇸🇬 831 65 2ms 6 May 2025 528th primo-ppcg 🇹🇭 831 77 1,449ms 30 Nov 2021 529th sisyphus-ppcg 🇦🇺 829 60 104ms 25 Feb 2021 529th sean-niemann 🇺🇸 829 60 106ms 27 Dec 2023 531st neel11235813 828 58 454ms 15 Jan 2024 531st Kacarott 🇦🇺 828 58 451ms 15 Jan 2024 531st Shanethegamer 🇺🇸 828 58 400ms 16 Jan 2024 531st Natanaelel 🇸🇪 828 58 416ms 20 Jan 2024 531st AlephSquirrel 828 58 429ms 21 Jan 2024 531st namelessiw 828 58 407ms 15 Aug 2024 531st snoozingnewt 🇨🇦 828 58 419ms 1 Dec 2025 538th Irratix 🇳🇱 827 51 41ms 4 Mar 2022 539th GrayJoKing 🇦🇺 827 65 4ms 9 Nov 2023 540th Yewzir 🇧🇪 827 85 371ms 16 Nov 2023 541st MeWhenI 🇻🇦 824 78 117ms 14 Oct 2022 542nd petroselo 823 61 11ms 16 Nov 2021 542nd Irratix 🇳🇱 823 61 11ms 8 Dec 2021 542nd cubed-guy 823 61 10ms 12 Feb 2022 542nd CedricGebistorf 823 61 10ms 18 Feb 2022 542nd jascotm 823 61 10ms 17 May 2022 542nd Eilonlif 🇮🇱 823 61 29ms 9 Sep 2022 542nd vishwathg 823 61 20ms 18 Sep 2022 542nd ZakkkkAttackkkk 🇵🇭 823 61 13ms 19 Aug 2023 542nd jtaxen 823 61 10ms 26 Mar 2024 542nd ahmetdemirag 🇨🇾 823 61 19ms 5 Nov 2024 542nd Pyroan 823 61 14ms 16 Mar 2025 542nd tri1212 🇻🇳 823 61 10ms 16 Apr 2025 554th Shanethegamer 🇺🇸 823 83 83ms 19 Apr 2022 555th alemelis 822 60 1,936ms 14 Aug 2024 556th GrayJoKing 🇦🇺 822 81 120ms 14 Mar 2022 556th MeWhenI 🇻🇦 822 81 121ms 15 Nov 2022 558th ovs-code 🇩🇪 819 56 130ms 3 Aug 2024 559th primo-ppcg 🇹🇭 819 66 2ms 18 Jan 2021 559th jared-hughes 819 66 2ms 31 Jul 2022 First Prev 481–560 of 1,903 Next Last