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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi 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 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 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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 667th robin-scragg 773 65 11ms 21 Oct 2025 677th c0d3-4-F00d 🇩🇪 771 70 2ms 18 Mar 2022 677th Alex-x90 🇺🇸 771 70 2ms 6 Mar 2023 677th dokutan 771 70 2ms 18 Jul 2025 680th mousetail 🇳🇱 771 98 123ms 3 Oct 2024 681st MeWhenI 🇻🇦 770 47 210ms 28 Jan 2023 682nd MeWhenI 🇻🇦 770 59 700ms 15 Sep 2025 683rd MeWhenI 🇻🇦 767 89 101ms 25 Dec 2022 684th emgordon154 766 32 38ms 19 Oct 2025 685th LostSyntax21 🇬🇧 766 55 41ms 2 Oct 2024 686th retrohun 765 63 120ms 23 Jan 2023 687th Shanethegamer 🇺🇸 765 65 108ms 22 May 2021 688th lynn 765 78 159ms 16 Nov 2021 689th rucin93 🇵🇱 764 60 131ms 9 Aug 2024 690th Waffle3z 764 61 10ms 20 Jan 2021 690th didion0 🇺🇸 764 61 10ms 9 Feb 2021 690th KrausRaus 🇺🇸 764 61 10ms 19 Feb 2021 690th tayloia 🇬🇧 764 61 10ms 29 May 2022 694th Shanethegamer 🇺🇸 764 93 53ms 12 Jan 2022 695th MeWhenI 🇻🇦 764 108 28ms 7 Jun 2023 696th Steffan153 🇫🇮 763 51 77ms 18 Dec 2022 697th ArmaanAS 761 66 10ms 4 Apr 2021 697th quimey 761 66 12ms 23 Jun 2023 697th Lv0Sys 🇵🇱 761 66 10ms 22 Jun 2025 697th solisolu 761 66 21ms 27 Oct 2025 701st SirBogman 🇺🇸 759 86 133ms 24 Jan 2021 701st strout 759 86 117ms 15 Dec 2023 703rd antimon2 🇯🇵 758 65 479ms 19 Jan 2021 704th GolfingSuccess 🇬🇷 758 71 6ms 16 Oct 2023 704th Yewzir 🇧🇪 758 71 3ms 8 days ago 706th kcinnu 🇱🇹 758 146 1,697ms 17 May 2024 707th albanian-laundromat 757 60 699ms 1 Oct 2025 708th duckyluuk 🇳🇱 756 73 8ms 16 Dec 2024 709th janbehrens 🇩🇪 756 93 548ms 24 Mar 2022 710th Shanethegamer 🇺🇸 754 63 5ms 13 Aug 2024 710th emgordon154 754 63 7ms 25 Aug 2024 712th lynn 753 85 1,497ms 12 Sep 2021 713th olivermrose 🇺🇸 752 56 37ms 21 Sep 2021 714th sean-niemann 🇺🇸 752 61 129ms 17 Jun 2025 715th ScottHamper 752 62 9ms 1 Jun 2021 715th helbling 🇨🇭 752 62 11ms 2 Oct 2024 717th RockOfStone 751 81 2ms 4 Nov 2021 717th dokutan 751 81 2ms 18 Jul 2025 719th Mabeloid 🇳🇴 750 64 572ms 17 Sep 2024 719th snoozingnewt 🇺🇸 750 64 472ms 15 Oct 2025 721st msbranicky 750 67 14ms 21 Aug 2023 722nd Yewzir 🇧🇪 750 72 2ms 12 Aug 2023 723rd cipharius 750 87 187ms 19 Jan 2021 724th ovs-code 🇩🇪 748 49 146ms 2 Jan 2024 725th arctouch-cristiannevianna 747 82 332ms 22 Nov 2023 726th Lydxn 🇨🇦 747 223 14ms 24 Jun 2021 727th GolfingSuccess 🇬🇷 743 33 50ms 22 Jul 2022 728th kg583 🇺🇸 741 85 38ms 13 Feb 2025 729th olivermrose 🇺🇸 740 63 9ms 21 Sep 2021 729th GeorgeStechman 🇬🇧 740 63 10ms 17 Nov 2022 731st DialFrost 🇸🇬 740 99 1,101ms 8 Mar 2024 732nd SirBogman 🇺🇸 740 139 3ms 21 Dec 2021 733rd jared-hughes 739 57 43ms 9 Sep 2022 734th Stockoh 🇫🇷 739 68 34ms 25 Dec 2021 734th Bonjour27891 🇻🇳 739 68 36ms 1 Sep 2022 734th trist224 🇫🇷 739 68 36ms 18 Oct 2022 734th mousetail 🇳🇱 739 68 35ms 11 Aug 2023 734th Command-Master 739 68 36ms 24 Sep 2023 734th firegene 🇮🇪 739 68 36ms 12 Oct 2024 740th janbehrens 🇩🇪 739 73 3ms 11 Jun 2021 741st DialFrost 🇸🇬 738 49 222ms 25 Jun 2024 742nd AlephSquirrel 738 99 11ms 18 Jan 2025 743rd MeWhenI 🇻🇦 734 93 4ms 22 May 2023 744th Yewzir 🇧🇪 733 62 707ms 11 days ago 745th guliyevemil1 🇦🇿 733 89 153ms 11 Feb 2021 745th annaproxy 733 89 192ms 17 Aug 2022 745th Shanethegamer 🇺🇸 733 89 128ms 20 Jan 2024 748th Omega65536 🇩🇪 733 103 143ms 24 Nov 2022 749th primo-ppcg 🇹🇭 731 117 28ms 14 Jul 2021 750th Shanethegamer 🇺🇸 730 88 103ms 15 Oct 2022 First Prev 676–750 of 1,873 Next Last