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 Continued Fractions 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 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 ><> ALGOL 68 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 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 ><> ALGOL 68 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 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 Continued Fractions 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 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 280th SirBogman 🇺🇸 881 57 13ms 10 Jun 2024 280th Seek64 🇩🇪 881 57 11ms 19 Jun 2024 280th wuzekai518 881 57 11ms 2 Aug 2024 280th bizy-coder 881 57 34ms 14 Aug 2024 280th jatloe 881 57 11ms 6 Sep 2024 280th 5quiwyrm 881 57 12ms 14 Nov 2024 280th lifthrasiir 🇰🇷 881 57 11ms 15 Nov 2024 280th GolfingSuccess 🇬🇷 881 57 13ms 24 Dec 2024 280th emgordon154 881 57 12ms 23 Apr 2025 280th qpwoeirut 881 57 13ms 11 Aug 2025 280th michaelmgreer 881 57 12ms 9 Oct 2025 280th Babafaba 881 57 12ms 19 Nov 2025 280th CaedenHarper 🇨🇦 881 57 11ms 9 Dec 2025 280th cros107 🇦🇺 881 57 11ms 31 Dec 2025 280th KasperKivimaeki 🇫🇮 881 57 11ms 3 Jan 2026 280th blaztoma 🇱🇹 881 57 11ms 11 Jan 2026 280th ryyyn 🇺🇸 881 57 29ms 21 Jan 2026 280th StefanHabel 🇨🇦 881 57 13ms 16 mins ago 339th SirBogman 🇺🇸 880 22 4ms 30 Sep 2022 340th JayXon 🇺🇸 880 73 105ms 15 Oct 2022 340th Steffan153 🇫🇮 880 73 107ms 7 Dec 2022 340th sean-niemann 🇺🇸 880 73 108ms 20 May 2024 343rd tomtheisen 🇺🇸 879 53 9ms 18 Jan 2021 343rd prplz 🇦🇺 879 53 10ms 24 Jan 2021 343rd jakzo 879 53 10ms 5 Sep 2021 343rd ovs-code 🇩🇪 879 53 9ms 5 Oct 2023 343rd dokutan 879 53 10ms 18 Jul 2025 348th Steffan153 🇫🇮 879 54 6ms 18 Aug 2024 349th namelessiw 879 78 368ms 2 Oct 2025 349th Yewzir 🇧🇪 879 78 377ms 2 Oct 2025 351st Steffan153 🇫🇮 878 94 49ms 18 Jan 2023 352nd namelessiw 877 70 389ms 18 Jul 2025 353rd GrayJoKing 🇦🇺 877 73 38ms 27 Jun 2022 353rd primo-ppcg 🇹🇭 877 73 38ms 28 Jun 2022 355th m-tkach 🇺🇦 877 107 17ms 17 May 2022 356th primo-ppcg 🇹🇭 876 28 47ms 30 Sep 2022 357th saito-ta 🇯🇵 876 55 3ms 26 May 2022 357th nwellnhof 🇩🇪 876 55 3ms 13 May 2023 359th GrayJoKing 🇦🇺 876 63 7ms 31 Jan 2025 360th emplv 🇱🇻 876 100 306ms 18 Jan 2022 360th stefangimmillaro 876 100 276ms 21 Jun 2023 362nd zacjl 875 72 40ms 13 Feb 2025 363rd primo-ppcg 🇹🇭 875 78 4ms 2 May 2023 364th Steffan153 🇫🇮 874 89 110ms 18 Aug 2024 365th JayXon 🇺🇸 874 127 1,725ms 22 Apr 2024 366th Lydxn 🇨🇦 873 55 458ms 16 Jan 2024 366th m-tkach 🇺🇦 873 55 378ms 20 Jan 2024 366th JayXon 🇺🇸 873 55 410ms 21 Jan 2024 366th sean-niemann 🇺🇸 873 55 483ms 26 Jan 2025 366th Steffan153 🇫🇮 873 55 427ms 16 days ago 371st stefangimmillaro 873 82 39ms 26 Apr 2025 372nd JayXon 🇺🇸 872 57 107ms 1 May 2023 372nd primo-ppcg 🇹🇭 872 57 105ms 1 May 2023 374th Irratix 🇳🇱 872 62 2ms 20 Dec 2021 374th ovs-code 🇩🇪 872 62 2ms 8 May 2023 374th sean-niemann 🇺🇸 872 62 2ms 18 Dec 2023 377th jared-hughes 872 126 15ms 7 Jul 2024 378th MeWhenI 🇻🇦 870 83 12ms 18 Jan 2026 379th ovs-code 🇩🇪 868 81 458ms 15 Jun 2024 379th DialFrost 🇸🇬 868 81 463ms 7 Nov 2025 381st Irratix 🇳🇱 868 83 58ms 3 Jan 2022 381st ovs-code 🇩🇪 868 83 55ms 3 Jun 2024 381st DialFrost 🇸🇬 868 83 57ms 7 Nov 2025 384th btjones0 868 87 115ms 26 Jan 2021 384th lynn 868 87 116ms 7 Jul 2024 386th ovs-code 🇩🇪 867 43 112ms 21 Dec 2022 387th Espiobest 866 58 11ms 13 Mar 2021 387th MaxElf999 866 58 10ms 3 Oct 2022 387th Shanethegamer 🇺🇸 866 58 30ms 18 Jan 2023 387th Alex-x90 🇺🇸 866 58 30ms 23 Mar 2023 387th neel11235813 866 58 29ms 24 Mar 2023 387th Natanaelel 🇸🇪 866 58 11ms 11 Apr 2023 387th InigoK 🇺🇸 866 58 28ms 28 May 2023 387th jmerle 🇳🇱 866 58 29ms 3 Jul 2023 387th ndren 866 58 31ms 4 Aug 2023 387th FlorianCassayre 🇫🇷 866 58 19ms 13 Sep 2023 387th Kacarott 🇦🇺 866 58 28ms 13 Oct 2023 387th m42km 866 58 28ms 25 Nov 2023 387th NickTheEASDude 🇺🇸 866 58 27ms 1 Jul 2024 387th namelessiw 866 58 30ms 27 Jul 2024 First Prev 321–400 of 1,925 Next Last