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 550th tri1212 🇻🇳 823 61 11ms 16 Apr 2025 562nd Shanethegamer 🇺🇸 823 83 82ms 19 Apr 2022 563rd alemelis 822 60 2,055ms 14 Aug 2024 564th GrayJoKing 🇦🇺 822 81 120ms 14 Mar 2022 564th MeWhenI 🇻🇦 822 81 125ms 15 Nov 2022 566th ovs-code 🇩🇪 819 56 135ms 3 Aug 2024 567th primo-ppcg 🇹🇭 819 66 2ms 18 Jan 2021 567th jared-hughes 819 66 2ms 31 Jul 2022 569th NewDefectus 🇮🇱 818 57 10ms 1 Nov 2021 570th KasperKivimaeki 🇫🇮 818 88 56ms 27 Nov 2025 570th emgordon154 818 88 54ms 27 days ago 572nd inventshah 817 59 2ms 18 May 2022 572nd MeWhenI 🇻🇦 817 59 2ms 18 May 2022 574th m-tkach 🇺🇦 817 101 29ms 18 Jan 2024 575th Shanethegamer 🇺🇸 816 84 468ms 25 Sep 2025 576th Yewzir 🇧🇪 815 61 111ms 16 Nov 2023 577th ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 577th inventshah 815 66 2ms 22 Oct 2023 579th BREMAUCY 🇫🇷 814 59 396ms 20 Feb 2024 580th duckyluuk 🇳🇱 814 70 2,332ms 28 Oct 2024 580th jkelly467 814 70 2,249ms 22 Dec 2025 582nd Steffan153 🇫🇮 814 90 4ms 10 Feb 2023 583rd emgordon154 814 107 119ms 4 Dec 2025 584th janlelis 811 52 40ms 18 Jan 2021 584th hiddicop 🇸🇪 811 52 40ms 29 Jan 2021 584th prplz 🇦🇺 811 52 39ms 22 Apr 2021 584th anter69 🇭🇺 811 52 40ms 14 Jan 2022 584th OhmNomNom 811 52 79ms 12 Oct 2022 584th olleicua 🇺🇸 811 52 38ms 25 Feb 2024 584th emgordon154 811 52 38ms 26 Nov 2024 591st Shanethegamer 🇺🇸 811 108 262ms 26 Sep 2021 592nd vezzick 810 62 13ms 12 Mar 2021 592nd schachmattmatt 810 62 11ms 18 Aug 2021 592nd cooljoseph1 810 62 23ms 6 May 2022 592nd fredrik-bakke 🇳🇴 810 62 19ms 29 Sep 2022 592nd nkoppel 810 62 11ms 19 Oct 2022 592nd AodhanDalton 810 62 11ms 4 Nov 2022 592nd nstearns96 🇬🇧 810 62 17ms 28 Nov 2022 592nd adamnielson42 🇺🇸 810 62 11ms 10 Jan 2024 592nd jbjd 810 62 11ms 2 Mar 2024 592nd wh3n3v3r 🇨🇿 810 62 11ms 12 Nov 2024 592nd jacekwladzinski 810 62 13ms 4 Oct 2025 592nd Mabeloid 🇳🇴 810 62 11ms 26 Oct 2025 604th Steffan153 🇫🇮 810 79 1,432ms 23 Mar 2023 604th Yewzir 🇧🇪 810 79 37ms 16 Nov 2023 606th Shanethegamer 🇺🇸 810 96 87ms 9 Jun 2022 607th m-tkach 🇺🇦 809 89 56ms 25 Apr 2022 607th MeWhenI 🇻🇦 809 89 56ms 8 May 2022 609th Shanethegamer 🇺🇸 808 76 408ms 13 Dec 2021 610th GolfingSuccess 🇬🇷 808 81 9ms 9 Sep 2022 611th m-tkach 🇺🇦 808 106 25ms 25 Apr 2022 612th emgordon154 807 67 2ms 22 Apr 2025 613th Dazza314 🇬🇧 806 24 3ms 16 Apr 2021 614th emgordon154 806 84 9ms 3 hours ago 615th ArmaanAS 804 58 11ms 4 Apr 2021 615th itsh01 804 58 9ms 18 Nov 2021 617th Steffan153 🇫🇮 803 60 2ms 6 May 2023 618th DaDerpDuck 803 76 1ms 20 Jan 2021 619th stefangimmillaro 803 80 111ms 23 Sep 2023 620th emgordon154 803 85 8ms 3 Jan 2025 621st Shanethegamer 🇺🇸 803 94 120ms 25 Jan 2021 622nd prplz 🇦🇺 802 83 126ms 10 Jul 2024 623rd NewDefectus 🇮🇱 800 35 56ms 25 Jan 2022 624th MeWhenI 🇻🇦 800 50 3ms 11 Nov 2022 625th GolfingSuccess 🇬🇷 800 69 8ms 24 Dec 2024 626th Yewzir 🇧🇪 800 90 59ms 14 Oct 2023 627th MeWhenI 🇻🇦 799 88 457ms 28 Feb 2022 628th SirBogman 🇺🇸 797 46 214ms 22 Oct 2021 629th apourchot 797 63 18ms 13 Feb 2021 629th neihousaigaai 797 63 10ms 10 Apr 2021 629th lechevalier 797 63 10ms 9 Aug 2021 629th yzhs 🇩🇪 797 63 11ms 7 Jun 2022 629th commandz0 🇺🇸 797 63 13ms 19 Sep 2022 629th fourth-bit 797 63 11ms 21 Nov 2022 629th FortuiteMan 🇫🇷 797 63 31ms 8 Sep 2023 629th ssbhatt4321 797 63 27ms 14 Oct 2023 629th JOrE20 797 63 11ms 10 days ago 638th Yax42 🇫🇷 797 77 409ms 5 May 2025 639th DialFrost 🇸🇬 796 53 38ms 2 Feb 2023 639th SirBogman 🇺🇸 796 53 37ms 10 Jun 2024 First Prev 561–640 of 1,929 Next Last