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 ArmaanAS 761 66 11ms 4 Apr 2021 721st quimey 761 66 10ms 23 Jun 2023 721st firegene 🇮🇪 761 66 22ms 14 days ago 724th kcinnu 🇱🇹 760 146 1,731ms 17 May 2024 725th SirBogman 🇺🇸 759 86 115ms 24 Jan 2021 725th strout 759 86 124ms 15 Dec 2023 727th antimon2 🇯🇵 758 65 495ms 19 Jan 2021 728th GolfingSuccess 🇬🇷 758 71 6ms 16 Oct 2023 728th Yewzir 🇧🇪 758 71 3ms 19 Nov 2025 730th duckyluuk 🇳🇱 756 73 8ms 16 Dec 2024 731st janbehrens 🇩🇪 756 93 460ms 24 Mar 2022 732nd Shanethegamer 🇺🇸 754 63 4ms 13 Aug 2024 732nd emgordon154 754 63 4ms 25 Aug 2024 734th olivermrose 🇺🇸 753 56 37ms 21 Sep 2021 735th RockOfStone 753 81 2ms 4 Nov 2021 735th dokutan 753 81 2ms 18 Jul 2025 737th lynn 753 85 1,383ms 12 Sep 2021 738th sean-niemann 🇺🇸 752 61 143ms 17 Jun 2025 739th ScottHamper 752 62 10ms 1 Jun 2021 739th helbling 🇨🇭 752 62 10ms 2 Oct 2024 741st Yewzir 🇧🇪 751 72 2ms 12 Aug 2023 742nd Mabeloid 🇳🇴 750 64 481ms 17 Sep 2024 743rd msbranicky 750 67 14ms 21 Aug 2023 744th cipharius 750 87 169ms 19 Jan 2021 745th Lydxn 🇨🇦 750 223 13ms 24 Jun 2021 746th CaedenHarper 🇨🇦 749 61 798ms 27 days ago 747th CaedenHarper 🇨🇦 749 117 282ms 27 days ago 748th ovs-code 🇩🇪 748 49 157ms 2 Jan 2024 749th arctouch-cristiannevianna 748 82 407ms 22 Nov 2023 750th GolfingSuccess 🇬🇷 743 33 49ms 22 Jul 2022 751st SirBogman 🇺🇸 742 139 2ms 21 Dec 2021 752nd kg583 🇺🇸 741 85 40ms 13 Feb 2025 753rd jared-hughes 740 57 38ms 9 Sep 2022 754th olivermrose 🇺🇸 740 63 13ms 21 Sep 2021 754th GeorgeStechman 🇬🇧 740 63 10ms 17 Nov 2022 756th janbehrens 🇩🇪 740 73 2ms 11 Jun 2021 757th DialFrost 🇸🇬 740 99 1,084ms 8 Mar 2024 758th Stockoh 🇫🇷 739 68 36ms 25 Dec 2021 758th Bonjour27891 🇻🇳 739 68 38ms 1 Sep 2022 758th trist224 🇫🇷 739 68 37ms 18 Oct 2022 758th mousetail 🇳🇱 739 68 37ms 11 Aug 2023 758th Command-Master 739 68 39ms 24 Sep 2023 763rd AlephSquirrel 739 99 9ms 18 Jan 2025 763rd edsrzf 🇳🇿 739 99 36ms 14 Dec 2025 765th DialFrost 🇸🇬 738 49 227ms 25 Jun 2024 766th Yewzir 🇧🇪 736 62 1,015ms 16 Nov 2025 767th MeWhenI 🇻🇦 734 93 4ms 22 May 2023 768th guliyevemil1 🇦🇿 733 89 124ms 11 Feb 2021 768th annaproxy 733 89 148ms 17 Aug 2022 768th Shanethegamer 🇺🇸 733 89 116ms 20 Jan 2024 768th snoozingnewt 🇨🇦 733 89 118ms 9 Dec 2025 772nd Omega65536 🇩🇪 733 103 141ms 24 Nov 2022 773rd primo-ppcg 🇹🇭 732 117 25ms 14 Jul 2021 774th Steffan153 🇫🇮 731 51 80ms 18 Dec 2022 775th CaedenHarper 🇨🇦 731 84 435ms 17 Oct 2025 776th Shanethegamer 🇺🇸 730 74 2ms 18 May 2022 777th Shanethegamer 🇺🇸 730 88 114ms 15 Oct 2022 778th dvik72 728 64 10ms 1 Jun 2022 778th AlephSquirrel 728 64 10ms 16 Feb 2023 780th abailey2020 🇺🇸 728 69 10ms 19 Feb 2021 780th Anonymousellama21 728 69 12ms 15 May 2022 780th TaserTheFox 🇺🇸 728 69 38ms 16 Feb 2023 783rd annaproxy 727 58 40ms 24 Oct 2023 784th KatieLG 🇬🇧 727 63 1,399ms 25 Apr 2021 785th Alex-x90 🇺🇸 727 99 463ms 23 Jun 2022 786th elgan65536 🇺🇸 726 104 159ms 7 Feb 2026 787th dokutan 726 118 25ms 18 Jul 2025 788th ovs-code 🇩🇪 725 72 12ms 16 Jul 2023 789th yzhs 🇩🇪 725 90 117ms 24 Jul 2021 790th jacobly0 🇺🇸 725 153 1,809ms 22 Apr 2024 790th MeWhenI 🇻🇦 725 153 1,682ms 7 Nov 2025 792nd AlephSquirrel 721 34 49ms 30 Dec 2022 793rd scpchicken 🇵🇼 719 51 165ms 18 Jan 2023 794th Yewzir 🇧🇪 719 91 2ms 28 Mar 2024 795th osmith93 718 70 25ms 14 Jun 2021 795th ridingqwerty 🇺🇸 718 70 12ms 23 Feb 2024 795th mbittner20 718 70 11ms 15 Jul 2024 795th luuumine 🇫🇷 718 70 11ms 20 Oct 2025 799th edsrzf 🇳🇿 718 95 7ms 24 Nov 2024 800th igmcdowell 717 65 11ms 23 Nov 2021 First Prev 721–800 of 1,929 Next Last