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 390th m42km 866 58 28ms 25 Nov 2023 390th NickTheEASDude 🇺🇸 866 58 27ms 1 Jul 2024 390th namelessiw 866 58 30ms 27 Jul 2024 390th edsrzf 🇳🇿 866 58 19ms 22 Nov 2024 390th croc54 866 58 30ms 9 Jan 2025 390th andrewjc2000 866 58 29ms 11 Mar 2025 390th Mukundan314 866 58 32ms 27 Apr 2025 390th fkantelberg 866 58 20ms 12 Jul 2025 390th wuduculfre 866 58 29ms 22 Jul 2025 390th HETHAT 🇩🇿 866 58 30ms 24 Sep 2025 390th CornerMercury 🇬🇧 866 58 29ms 24 Nov 2025 390th snoozingnewt 🇨🇦 866 58 18ms 1 Dec 2025 413th lukegustafson 🇺🇸 865 53 144ms 17 Jun 2025 414th stefangimmillaro 865 79 91ms 21 Jun 2023 415th janbehrens 🇩🇪 864 43 4ms 18 Jan 2021 416th Shanethegamer 🇺🇸 864 53 1,258ms 23 May 2021 416th MeWhenI 🇻🇦 864 53 1,291ms 16 Mar 2022 418th GrayJoKing 🇦🇺 864 90 100ms 9 Jun 2022 419th DaCuteRaccoon 863 54 10ms 9 Dec 2022 420th blaztoma 🇱🇹 862 46 6ms 4 hours ago 421st edsrzf 🇳🇿 862 53 1,416ms 31 Aug 2025 421st DialFrost 🇸🇬 862 53 940ms 1 Sep 2025 421st xsot 🇸🇬 862 53 1,028ms 21 Dec 2025 424th bitsandbeyond 🇳🇱 861 42 232ms 27 Oct 2025 425th primo-ppcg 🇹🇭 861 49 47ms 18 Jan 2022 426th sisyphus-ppcg 🇦🇺 861 56 2ms 12 Jul 2022 427th error256 861 72 62ms 11 Dec 2025 428th DialFrost 🇸🇬 861 76 3ms 14 Sep 2024 429th FortuiteMan 🇫🇷 860 84 12ms 16 Jan 2026 430th frosster 🇨🇦 859 71 2ms 27 Jan 2026 431st GrayJoKing 🇦🇺 859 96 32ms 18 Jan 2023 431st lynn 859 96 39ms 6 Aug 2023 433rd DialFrost 🇸🇬 858 56 414ms 15 Jan 2024 433rd duckyluuk 🇳🇱 858 56 475ms 27 Mar 2024 435th Steffan153 🇫🇮 858 63 2ms 23 Mar 2023 435th stefangimmillaro 858 63 2ms 18 Sep 2023 435th xsot 🇸🇬 858 63 2ms 6 May 2025 435th KasperKivimaeki 🇫🇮 858 63 2ms 14 Aug 2025 439th GrayJoKing 🇦🇺 857 79 7ms 3 days ago 439th emgordon154 857 79 30ms 3 days ago 441st MeWhenI 🇻🇦 857 80 473ms 7 Nov 2025 442nd jared-hughes 857 84 59ms 31 Jul 2022 442nd inventshah 857 84 60ms 17 Nov 2022 444th Lydxn 🇨🇦 857 100 25ms 13 Oct 2023 445th primo-ppcg 🇹🇭 857 195 11ms 2 Aug 2023 446th Lydxn 🇨🇦 854 63 2ms 15 Jan 2024 446th JayXon 🇺🇸 854 63 2ms 29 Jan 2024 446th rucin93 🇵🇱 854 63 2ms 19 Nov 2025 449th primo-ppcg 🇹🇭 854 78 124ms 27 Mar 2021 449th Shanethegamer 🇺🇸 854 78 128ms 18 Mar 2023 449th Ripick 854 78 123ms 2 Jun 2025 452nd sean-niemann 🇺🇸 854 80 94ms 21 Sep 2023 452nd Yewzir 🇧🇪 854 80 81ms 16 Nov 2023 454th snoozingnewt 🇨🇦 854 102 108ms 5 Dec 2025 455th nwellnhof 🇩🇪 852 43 155ms 21 Oct 2021 455th primo-ppcg 🇹🇭 852 43 154ms 22 Apr 2022 457th MeWhenI 🇻🇦 852 72 417ms 21 Nov 2021 458th MeWhenI 🇻🇦 852 84 40ms 29 Apr 2025 459th marcin7Cd 851 59 10ms 16 Jan 2021 459th rak1507 🇬🇧 851 59 10ms 20 Jan 2021 459th AlephSquirrel 851 59 11ms 13 May 2021 459th rschwa6308 🇺🇸 851 59 10ms 28 Jun 2021 459th NewDefectus 🇮🇱 851 59 12ms 25 Oct 2021 459th jacksonhenry3 851 59 13ms 21 Dec 2021 459th NicoAdams 851 59 12ms 21 Dec 2021 459th aksyristos 851 59 10ms 28 Feb 2023 459th BREMAUCY 🇫🇷 851 59 11ms 27 Apr 2023 459th 2011-Chan-Ethan 851 59 11ms 17 Jul 2023 459th MarcMush 🇫🇷 851 59 10ms 12 Feb 2024 459th albanian-laundromat 851 59 13ms 13 Apr 2025 459th plcc0 851 59 11ms 13 Jan 2026 459th CommandLeo 🇮🇹 851 59 11ms 18 Jan 2026 459th pengu1n-master 851 59 11ms 10 Feb 2026 474th Shanethegamer 🇺🇸 851 67 2,205ms 27 Oct 2024 475th kg583 🇺🇸 851 86 9ms 1 Sep 2025 476th ovs-code 🇩🇪 851 138 1,439ms 17 Feb 2025 477th albanian-laundromat 850 77 9ms 22 Oct 2025 478th MeWhenI 🇻🇦 849 65 7ms 24 Dec 2024 479th ovs-code 🇩🇪 849 73 67ms 17 Sep 2023 480th MeWhenI 🇻🇦 848 27 33ms 16 Mar 2022 First Prev 401–480 of 1,932 Next Last