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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 293rd lzahray 882 57 36ms 21 Oct 2022 293rd thehylian 882 57 11ms 10 Jan 2023 293rd 5cw 🇺🇸 882 57 11ms 10 Apr 2023 293rd xsot 🇸🇬 882 57 25ms 26 Apr 2023 293rd Rubiksmath 882 57 12ms 14 Aug 2023 293rd kg583 🇺🇸 882 57 25ms 26 Sep 2023 293rd bzijlema 🇳🇱 882 57 14ms 15 Nov 2023 293rd janbehrens 🇩🇪 882 57 13ms 30 Dec 2023 293rd mathisfun271 882 57 11ms 4 Feb 2024 293rd duckyluuk 🇳🇱 882 57 25ms 6 Feb 2024 293rd Yewzir 🇧🇪 882 57 16ms 29 Feb 2024 293rd elgan65536 🇺🇸 882 57 11ms 4 Apr 2024 293rd thienudomsrirungruang 882 57 11ms 27 Apr 2024 293rd SirBogman 🇺🇸 882 57 14ms 10 Jun 2024 293rd wuzekai518 882 57 12ms 2 Aug 2024 293rd bizy-coder 882 57 36ms 14 Aug 2024 293rd jatloe 882 57 11ms 6 Sep 2024 293rd 5quiwyrm 882 57 11ms 14 Nov 2024 293rd lifthrasiir 🇰🇷 882 57 11ms 15 Nov 2024 293rd GolfingSuccess 🇬🇷 882 57 13ms 24 Dec 2024 293rd emgordon154 882 57 11ms 23 Apr 2025 293rd qpwoeirut 882 57 14ms 11 Aug 2025 293rd michaelmgreer 882 57 11ms 9 Oct 2025 293rd Babafaba 882 57 13ms 19 Nov 2025 293rd CaedenHarper 🇨🇦 882 57 11ms 9 Dec 2025 293rd cros107 🇦🇺 882 57 15ms 31 Dec 2025 293rd KasperKivimaeki 🇫🇮 882 57 14ms 3 Jan 2026 293rd blaztoma 🇱🇹 882 57 12ms 11 Jan 2026 293rd ryyyn 🇺🇸 882 57 36ms 21 Jan 2026 293rd StefanHabel 🇨🇦 882 57 13ms 1 Mar 2026 293rd Flekay 🇩🇪 882 57 13ms 24 days ago 293rd edsrzf 🇳🇿 882 57 12ms 14 days ago 293rd jusaka 882 57 13ms 8 days ago 354th JayXon 🇺🇸 882 73 117ms 15 Oct 2022 354th Steffan153 🇫🇮 882 73 114ms 7 Dec 2022 354th sean-niemann 🇺🇸 882 73 110ms 20 May 2024 357th SirBogman 🇺🇸 880 22 3ms 30 Sep 2022 358th tomtheisen 🇺🇸 880 53 11ms 18 Jan 2021 358th prplz 🇦🇺 880 53 10ms 24 Jan 2021 358th jakzo 880 53 12ms 5 Sep 2021 358th ovs-code 🇩🇪 880 53 10ms 5 Oct 2023 358th dokutan 880 53 11ms 18 Jul 2025 363rd GrayJoKing 🇦🇺 880 73 38ms 27 Jun 2022 363rd primo-ppcg 🇹🇭 880 73 38ms 28 Jun 2022 365th namelessiw 880 78 368ms 2 Oct 2025 365th Yewzir 🇧🇪 880 78 377ms 2 Oct 2025 367th Steffan153 🇫🇮 880 94 49ms 18 Jan 2023 368th GrayJoKing 🇦🇺 879 63 7ms 31 Jan 2025 369th Steffan153 🇫🇮 879 89 110ms 18 Aug 2024 370th m-tkach 🇺🇦 879 107 17ms 17 May 2022 371st zacjl 878 72 40ms 13 Feb 2025 372nd primo-ppcg 🇹🇭 878 78 4ms 2 May 2023 373rd primo-ppcg 🇹🇭 877 28 44ms 30 Sep 2022 374th saito-ta 🇯🇵 877 55 3ms 26 May 2022 374th nwellnhof 🇩🇪 877 55 3ms 13 May 2023 376th namelessiw 877 70 450ms 18 Jul 2025 377th emplv 🇱🇻 877 100 343ms 18 Jan 2022 377th stefangimmillaro 877 100 304ms 21 Jun 2023 379th stefangimmillaro 875 82 39ms 26 Apr 2025 380th Lydxn 🇨🇦 874 55 465ms 16 Jan 2024 380th m-tkach 🇺🇦 874 55 388ms 20 Jan 2024 380th JayXon 🇺🇸 874 55 503ms 21 Jan 2024 380th sean-niemann 🇺🇸 874 55 488ms 26 Jan 2025 380th Steffan153 🇫🇮 874 55 541ms 13 Feb 2026 385th JayXon 🇺🇸 874 57 149ms 1 May 2023 385th primo-ppcg 🇹🇭 874 57 151ms 1 May 2023 387th jared-hughes 874 126 15ms 7 Jul 2024 388th MeWhenI 🇻🇦 873 83 14ms 18 Jan 2026 389th Irratix 🇳🇱 872 62 2ms 20 Dec 2021 389th ovs-code 🇩🇪 872 62 2ms 8 May 2023 389th sean-niemann 🇺🇸 872 62 2ms 18 Dec 2023 392nd btjones0 871 87 127ms 26 Jan 2021 392nd lynn 871 87 118ms 7 Jul 2024 394th ovs-code 🇩🇪 870 81 458ms 15 Jun 2024 394th DialFrost 🇸🇬 870 81 463ms 7 Nov 2025 396th ovs-code 🇩🇪 869 43 92ms 21 Dec 2022 396th snoozingnewt 🇨🇦 869 43 103ms 115 mins ago 398th GrayJoKing 🇦🇺 869 90 100ms 9 Jun 2022 399th stefangimmillaro 868 79 100ms 21 Jun 2023 400th Irratix 🇳🇱 868 83 57ms 3 Jan 2022 First Prev 321–400 of 2,046 Next Last