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 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 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 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 Lily 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 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 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 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 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 720th Yewzir 🇧🇪 758 71 3ms 19 Nov 2025 722nd duckyluuk 🇳🇱 756 73 8ms 16 Dec 2024 723rd janbehrens 🇩🇪 756 93 464ms 24 Mar 2022 724th Shanethegamer 🇺🇸 754 63 4ms 13 Aug 2024 724th emgordon154 754 63 4ms 25 Aug 2024 726th olivermrose 🇺🇸 753 56 41ms 21 Sep 2021 727th RockOfStone 753 81 3ms 4 Nov 2021 727th dokutan 753 81 2ms 18 Jul 2025 729th lynn 753 85 1,383ms 12 Sep 2021 730th sean-niemann 🇺🇸 752 61 138ms 17 Jun 2025 731st ScottHamper 752 62 10ms 1 Jun 2021 731st helbling 🇨🇭 752 62 11ms 2 Oct 2024 733rd Yewzir 🇧🇪 751 72 2ms 12 Aug 2023 734th Mabeloid 🇳🇴 750 64 500ms 17 Sep 2024 735th msbranicky 750 67 15ms 21 Aug 2023 735th JOrE20 🇺🇸 750 67 11ms 8 days ago 735th Flekay 🇩🇪 750 67 11ms 10 mins ago 738th cipharius 750 87 198ms 19 Jan 2021 739th Lydxn 🇨🇦 750 223 13ms 24 Jun 2021 740th CaedenHarper 🇨🇦 749 117 259ms 22 hours ago 741st ovs-code 🇩🇪 748 49 141ms 2 Jan 2024 742nd arctouch-cristiannevianna 748 82 407ms 22 Nov 2023 743rd CaedenHarper 🇨🇦 747 61 798ms 22 hours ago 744th GolfingSuccess 🇬🇷 743 33 63ms 22 Jul 2022 745th kg583 🇺🇸 741 85 40ms 13 Feb 2025 746th SirBogman 🇺🇸 741 139 2ms 21 Dec 2021 747th jared-hughes 740 57 40ms 9 Sep 2022 748th olivermrose 🇺🇸 740 63 10ms 21 Sep 2021 748th GeorgeStechman 🇬🇧 740 63 9ms 17 Nov 2022 750th janbehrens 🇩🇪 740 73 2ms 11 Jun 2021 751st DialFrost 🇸🇬 740 99 1,087ms 8 Mar 2024 752nd Stockoh 🇫🇷 739 68 41ms 25 Dec 2021 752nd Bonjour27891 🇻🇳 739 68 38ms 1 Sep 2022 752nd trist224 🇫🇷 739 68 37ms 18 Oct 2022 752nd mousetail 🇳🇱 739 68 38ms 11 Aug 2023 752nd Command-Master 739 68 40ms 24 Sep 2023 752nd firegene 🇮🇪 739 68 36ms 12 Oct 2024 758th AlephSquirrel 739 99 10ms 18 Jan 2025 758th edsrzf 🇳🇿 739 99 36ms 14 Dec 2025 760th DialFrost 🇸🇬 738 49 274ms 25 Jun 2024 761st Yewzir 🇧🇪 735 62 1,015ms 16 Nov 2025 762nd MeWhenI 🇻🇦 734 93 4ms 22 May 2023 763rd guliyevemil1 🇦🇿 733 89 124ms 11 Feb 2021 763rd annaproxy 733 89 148ms 17 Aug 2022 763rd Shanethegamer 🇺🇸 733 89 116ms 20 Jan 2024 763rd snoozingnewt 🇨🇦 733 89 118ms 9 Dec 2025 767th Omega65536 🇩🇪 733 103 133ms 24 Nov 2022 768th primo-ppcg 🇹🇭 732 117 25ms 14 Jul 2021 769th Steffan153 🇫🇮 731 51 80ms 18 Dec 2022 770th CaedenHarper 🇨🇦 731 84 450ms 17 Oct 2025 771st Shanethegamer 🇺🇸 730 74 2ms 18 May 2022 772nd Shanethegamer 🇺🇸 730 88 146ms 15 Oct 2022 773rd dvik72 728 64 9ms 1 Jun 2022 773rd AlephSquirrel 728 64 11ms 16 Feb 2023 775th abailey2020 🇺🇸 728 69 10ms 19 Feb 2021 775th Anonymousellama21 728 69 12ms 15 May 2022 775th TaserTheFox 🇺🇸 728 69 38ms 16 Feb 2023 778th annaproxy 727 58 40ms 24 Oct 2023 779th KatieLG 🇬🇧 727 63 1,399ms 25 Apr 2021 780th Alex-x90 🇺🇸 727 99 399ms 23 Jun 2022 781st elgan65536 🇺🇸 726 104 162ms 5 days ago 782nd dokutan 726 118 25ms 18 Jul 2025 783rd ovs-code 🇩🇪 725 72 12ms 16 Jul 2023 784th yzhs 🇩🇪 725 90 117ms 24 Jul 2021 785th jacobly0 🇺🇸 725 153 1,809ms 22 Apr 2024 785th MeWhenI 🇻🇦 725 153 1,682ms 7 Nov 2025 787th AlephSquirrel 721 34 50ms 30 Dec 2022 788th scpchicken 🇵🇼 719 51 147ms 18 Jan 2023 789th Yewzir 🇧🇪 719 91 2ms 28 Mar 2024 790th osmith93 718 70 25ms 14 Jun 2021 790th ridingqwerty 🇺🇸 718 70 12ms 23 Feb 2024 790th mbittner20 718 70 11ms 15 Jul 2024 790th luuumine 🇫🇷 718 70 11ms 20 Oct 2025 794th edsrzf 🇳🇿 718 95 6ms 24 Nov 2024 795th igmcdowell 717 65 10ms 23 Nov 2021 796th msbranicky 717 67 496ms 17 Jan 2024 797th MeWhenI 🇻🇦 717 75 8ms 9 Oct 2023 798th prplz 🇦🇺 717 91 118ms 25 Jan 2021 799th marshallward 🇺🇸 716 100 41ms 7 May 2025 800th NewDefectus 🇮🇱 715 32 34ms 20 Dec 2021 First Prev 721–800 of 1,918 Next Last