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 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 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 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 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 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 Turtle Tutorial # Golfer Points Bytes Time Submitted 670th fgrosshans 🇫🇷 773 65 11ms 12 Jul 2022 670th IshanPanpaliya 773 65 11ms 3 May 2023 670th nooberitess 773 65 10ms 8 Apr 2025 670th robin-scragg 773 65 12ms 21 Oct 2025 680th c0d3-4-F00d 🇩🇪 771 70 2ms 18 Mar 2022 680th Alex-x90 🇺🇸 771 70 2ms 6 Mar 2023 680th dokutan 771 70 2ms 18 Jul 2025 683rd mousetail 🇳🇱 771 98 123ms 3 Oct 2024 684th MeWhenI 🇻🇦 770 47 210ms 28 Jan 2023 685th MeWhenI 🇻🇦 770 59 700ms 15 Sep 2025 686th MeWhenI 🇻🇦 767 89 101ms 25 Dec 2022 687th emgordon154 766 32 38ms 19 Oct 2025 688th LostSyntax21 🇬🇧 766 55 41ms 2 Oct 2024 689th retrohun 765 63 120ms 23 Jan 2023 690th Shanethegamer 🇺🇸 765 65 108ms 22 May 2021 691st lynn 765 78 150ms 16 Nov 2021 692nd Shanethegamer 🇺🇸 765 93 53ms 12 Jan 2022 693rd rucin93 🇵🇱 764 60 131ms 9 Aug 2024 694th Waffle3z 764 61 10ms 20 Jan 2021 694th didion0 🇺🇸 764 61 10ms 9 Feb 2021 694th KrausRaus 🇺🇸 764 61 9ms 19 Feb 2021 694th tayloia 🇬🇧 764 61 10ms 29 May 2022 698th MeWhenI 🇻🇦 764 108 28ms 7 Jun 2023 699th Steffan153 🇫🇮 763 51 77ms 18 Dec 2022 700th ScottHamper 762 90 347ms 3 days ago 701st ArmaanAS 761 66 11ms 4 Apr 2021 701st quimey 761 66 10ms 23 Jun 2023 701st Lv0Sys 🇵🇱 761 66 11ms 22 Jun 2025 701st solisolu 761 66 20ms 27 Oct 2025 705th SirBogman 🇺🇸 759 86 133ms 24 Jan 2021 705th strout 759 86 117ms 15 Dec 2023 707th antimon2 🇯🇵 758 65 475ms 19 Jan 2021 708th GolfingSuccess 🇬🇷 758 71 6ms 16 Oct 2023 708th Yewzir 🇧🇪 758 71 3ms 15 days ago 710th kcinnu 🇱🇹 758 146 1,694ms 17 May 2024 711th albanian-laundromat 757 60 699ms 1 Oct 2025 712th duckyluuk 🇳🇱 756 73 7ms 16 Dec 2024 713th janbehrens 🇩🇪 756 93 548ms 24 Mar 2022 714th Shanethegamer 🇺🇸 754 63 5ms 13 Aug 2024 714th emgordon154 754 63 7ms 25 Aug 2024 716th lynn 753 85 1,338ms 12 Sep 2021 717th olivermrose 🇺🇸 752 56 37ms 21 Sep 2021 718th sean-niemann 🇺🇸 752 61 129ms 17 Jun 2025 719th ScottHamper 752 62 9ms 1 Jun 2021 719th helbling 🇨🇭 752 62 9ms 2 Oct 2024 721st RockOfStone 751 81 2ms 4 Nov 2021 721st dokutan 751 81 2ms 18 Jul 2025 723rd Mabeloid 🇳🇴 750 64 513ms 17 Sep 2024 724th msbranicky 750 67 15ms 21 Aug 2023 725th Yewzir 🇧🇪 750 72 2ms 12 Aug 2023 726th cipharius 750 87 187ms 19 Jan 2021 727th Lydxn 🇨🇦 750 223 14ms 24 Jun 2021 728th ovs-code 🇩🇪 748 49 146ms 2 Jan 2024 729th arctouch-cristiannevianna 747 82 332ms 22 Nov 2023 730th GolfingSuccess 🇬🇷 743 33 50ms 22 Jul 2022 731st kg583 🇺🇸 741 85 38ms 13 Feb 2025 732nd olivermrose 🇺🇸 740 63 9ms 21 Sep 2021 732nd GeorgeStechman 🇬🇧 740 63 9ms 17 Nov 2022 734th DialFrost 🇸🇬 740 99 1,091ms 8 Mar 2024 735th SirBogman 🇺🇸 740 139 3ms 21 Dec 2021 736th jared-hughes 739 57 43ms 9 Sep 2022 737th Stockoh 🇫🇷 739 68 33ms 25 Dec 2021 737th Bonjour27891 🇻🇳 739 68 36ms 1 Sep 2022 737th trist224 🇫🇷 739 68 36ms 18 Oct 2022 737th mousetail 🇳🇱 739 68 34ms 11 Aug 2023 737th Command-Master 739 68 36ms 24 Sep 2023 737th firegene 🇮🇪 739 68 35ms 12 Oct 2024 743rd janbehrens 🇩🇪 739 73 3ms 11 Jun 2021 744th DialFrost 🇸🇬 738 49 222ms 25 Jun 2024 745th AlephSquirrel 738 99 11ms 18 Jan 2025 746th MeWhenI 🇻🇦 734 93 4ms 22 May 2023 747th Yewzir 🇧🇪 733 62 707ms 17 days ago 748th guliyevemil1 🇦🇿 733 89 153ms 11 Feb 2021 748th annaproxy 733 89 192ms 17 Aug 2022 748th Shanethegamer 🇺🇸 733 89 128ms 20 Jan 2024 First Prev 676–750 of 1,878 Next Last