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 Alphabetic Numbers 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 Alphabetic Numbers 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 721st ScottHamper 762 90 502ms 30 Nov 2025 722nd albanian-laundromat 761 60 1,139ms 1 Oct 2025 723rd ArmaanAS 761 66 11ms 4 Apr 2021 723rd quimey 761 66 10ms 23 Jun 2023 723rd firegene 🇮🇪 761 66 22ms 15 days ago 726th kcinnu 🇱🇹 760 146 1,731ms 17 May 2024 727th SirBogman 🇺🇸 759 86 115ms 24 Jan 2021 727th strout 759 86 124ms 15 Dec 2023 729th antimon2 🇯🇵 758 65 495ms 19 Jan 2021 730th GolfingSuccess 🇬🇷 758 71 6ms 16 Oct 2023 730th Yewzir 🇧🇪 758 71 3ms 19 Nov 2025 732nd duckyluuk 🇳🇱 756 73 8ms 16 Dec 2024 733rd janbehrens 🇩🇪 756 93 460ms 24 Mar 2022 734th Shanethegamer 🇺🇸 754 63 4ms 13 Aug 2024 734th emgordon154 754 63 4ms 25 Aug 2024 736th olivermrose 🇺🇸 753 56 37ms 21 Sep 2021 737th RockOfStone 753 81 2ms 4 Nov 2021 737th dokutan 753 81 2ms 18 Jul 2025 739th lynn 753 85 1,383ms 12 Sep 2021 740th sean-niemann 🇺🇸 752 61 143ms 17 Jun 2025 741st ScottHamper 752 62 10ms 1 Jun 2021 741st helbling 🇨🇭 752 62 10ms 2 Oct 2024 743rd Yewzir 🇧🇪 751 72 2ms 12 Aug 2023 744th Mabeloid 🇳🇴 750 64 481ms 17 Sep 2024 745th msbranicky 750 67 14ms 21 Aug 2023 746th cipharius 750 87 169ms 19 Jan 2021 747th Lydxn 🇨🇦 750 223 13ms 24 Jun 2021 748th CaedenHarper 🇨🇦 749 61 798ms 27 days ago 749th CaedenHarper 🇨🇦 749 117 282ms 27 days ago 750th ovs-code 🇩🇪 748 49 157ms 2 Jan 2024 751st arctouch-cristiannevianna 748 82 407ms 22 Nov 2023 752nd GolfingSuccess 🇬🇷 744 33 49ms 22 Jul 2022 753rd SirBogman 🇺🇸 742 139 2ms 21 Dec 2021 754th kg583 🇺🇸 741 85 40ms 13 Feb 2025 755th jared-hughes 740 57 38ms 9 Sep 2022 756th olivermrose 🇺🇸 740 63 13ms 21 Sep 2021 756th GeorgeStechman 🇬🇧 740 63 10ms 17 Nov 2022 758th janbehrens 🇩🇪 740 73 2ms 11 Jun 2021 759th DialFrost 🇸🇬 740 99 1,084ms 8 Mar 2024 760th Stockoh 🇫🇷 739 68 36ms 25 Dec 2021 760th Bonjour27891 🇻🇳 739 68 38ms 1 Sep 2022 760th trist224 🇫🇷 739 68 37ms 18 Oct 2022 760th mousetail 🇳🇱 739 68 37ms 11 Aug 2023 760th Command-Master 739 68 39ms 24 Sep 2023 765th AlephSquirrel 739 99 9ms 18 Jan 2025 765th edsrzf 🇳🇿 739 99 36ms 14 Dec 2025 767th DialFrost 🇸🇬 738 49 227ms 25 Jun 2024 768th Yewzir 🇧🇪 736 62 1,015ms 16 Nov 2025 769th MeWhenI 🇻🇦 734 93 4ms 22 May 2023 770th guliyevemil1 🇦🇿 733 89 124ms 11 Feb 2021 770th annaproxy 733 89 148ms 17 Aug 2022 770th Shanethegamer 🇺🇸 733 89 116ms 20 Jan 2024 770th snoozingnewt 🇨🇦 733 89 118ms 9 Dec 2025 774th Omega65536 🇩🇪 733 103 141ms 24 Nov 2022 775th primo-ppcg 🇹🇭 732 117 25ms 14 Jul 2021 776th Steffan153 🇫🇮 731 51 80ms 18 Dec 2022 777th CaedenHarper 🇨🇦 731 84 435ms 17 Oct 2025 778th Shanethegamer 🇺🇸 730 74 2ms 18 May 2022 779th Shanethegamer 🇺🇸 730 88 114ms 15 Oct 2022 780th dvik72 728 64 10ms 1 Jun 2022 780th AlephSquirrel 728 64 10ms 16 Feb 2023 782nd abailey2020 🇺🇸 728 69 10ms 19 Feb 2021 782nd Anonymousellama21 728 69 12ms 15 May 2022 782nd TaserTheFox 🇺🇸 728 69 38ms 16 Feb 2023 785th annaproxy 727 58 40ms 24 Oct 2023 786th KatieLG 🇬🇧 727 63 1,399ms 25 Apr 2021 787th Alex-x90 🇺🇸 727 99 463ms 23 Jun 2022 788th elgan65536 🇺🇸 726 104 159ms 7 Feb 2026 789th dokutan 726 118 25ms 18 Jul 2025 790th ovs-code 🇩🇪 725 72 12ms 16 Jul 2023 791st yzhs 🇩🇪 725 90 117ms 24 Jul 2021 792nd jacobly0 🇺🇸 725 153 1,809ms 22 Apr 2024 792nd MeWhenI 🇻🇦 725 153 1,682ms 7 Nov 2025 794th AlephSquirrel 722 34 49ms 30 Dec 2022 795th scpchicken 🇵🇼 719 51 165ms 18 Jan 2023 796th Yewzir 🇧🇪 719 91 2ms 28 Mar 2024 797th osmith93 718 70 25ms 14 Jun 2021 797th ridingqwerty 🇺🇸 718 70 12ms 23 Feb 2024 797th mbittner20 718 70 11ms 15 Jul 2024 797th luuumine 🇫🇷 718 70 11ms 20 Oct 2025 First Prev 721–800 of 1,932 Next Last