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 Gray Code Decoder Gray Code Encoder 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 Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder 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 Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 287th bzijlema 🇳🇱 881 57 11ms 15 Nov 2023 287th janbehrens 🇩🇪 881 57 11ms 30 Dec 2023 287th mathisfun271 881 57 10ms 4 Feb 2024 287th duckyluuk 🇳🇱 881 57 25ms 6 Feb 2024 287th Yewzir 🇧🇪 881 57 12ms 29 Feb 2024 287th elgan65536 🇺🇸 881 57 13ms 4 Apr 2024 287th thienudomsrirungruang 881 57 10ms 27 Apr 2024 287th SirBogman 🇺🇸 881 57 13ms 10 Jun 2024 287th wuzekai518 881 57 11ms 2 Aug 2024 287th bizy-coder 881 57 34ms 14 Aug 2024 287th jatloe 881 57 11ms 6 Sep 2024 287th 5quiwyrm 881 57 12ms 14 Nov 2024 287th lifthrasiir 🇰🇷 881 57 11ms 15 Nov 2024 287th GolfingSuccess 🇬🇷 881 57 13ms 24 Dec 2024 287th emgordon154 881 57 12ms 23 Apr 2025 287th qpwoeirut 881 57 13ms 11 Aug 2025 287th michaelmgreer 881 57 12ms 9 Oct 2025 287th Babafaba 881 57 12ms 19 Nov 2025 287th CaedenHarper 🇨🇦 881 57 11ms 9 Dec 2025 287th cros107 🇦🇺 881 57 11ms 31 Dec 2025 287th KasperKivimaeki 🇫🇮 881 57 11ms 3 Jan 2026 287th blaztoma 🇱🇹 881 57 11ms 11 Jan 2026 287th ryyyn 🇺🇸 881 57 29ms 21 Jan 2026 287th StefanHabel 🇨🇦 881 57 13ms 1 Mar 2026 287th Flekay 🇩🇪 881 57 13ms 6 days ago 346th SirBogman 🇺🇸 880 22 3ms 30 Sep 2022 347th tomtheisen 🇺🇸 880 53 9ms 18 Jan 2021 347th prplz 🇦🇺 880 53 9ms 24 Jan 2021 347th jakzo 880 53 9ms 5 Sep 2021 347th ovs-code 🇩🇪 880 53 9ms 5 Oct 2023 347th dokutan 880 53 9ms 18 Jul 2025 352nd JayXon 🇺🇸 880 73 116ms 15 Oct 2022 352nd Steffan153 🇫🇮 880 73 130ms 7 Dec 2022 352nd sean-niemann 🇺🇸 880 73 123ms 20 May 2024 355th Steffan153 🇫🇮 879 54 6ms 18 Aug 2024 356th namelessiw 879 78 368ms 2 Oct 2025 356th Yewzir 🇧🇪 879 78 377ms 2 Oct 2025 358th Steffan153 🇫🇮 878 94 49ms 18 Jan 2023 359th primo-ppcg 🇹🇭 877 28 44ms 30 Sep 2022 360th namelessiw 877 70 394ms 18 Jul 2025 361st GrayJoKing 🇦🇺 877 73 38ms 27 Jun 2022 361st primo-ppcg 🇹🇭 877 73 38ms 28 Jun 2022 363rd m-tkach 🇺🇦 877 107 17ms 17 May 2022 364th saito-ta 🇯🇵 876 55 3ms 26 May 2022 364th nwellnhof 🇩🇪 876 55 3ms 13 May 2023 366th GrayJoKing 🇦🇺 876 63 7ms 31 Jan 2025 367th emplv 🇱🇻 876 100 319ms 18 Jan 2022 367th stefangimmillaro 876 100 276ms 21 Jun 2023 369th zacjl 875 72 40ms 13 Feb 2025 370th primo-ppcg 🇹🇭 875 78 4ms 2 May 2023 371st Lydxn 🇨🇦 874 55 458ms 16 Jan 2024 371st m-tkach 🇺🇦 874 55 378ms 20 Jan 2024 371st JayXon 🇺🇸 874 55 410ms 21 Jan 2024 371st sean-niemann 🇺🇸 874 55 483ms 26 Jan 2025 371st Steffan153 🇫🇮 874 55 427ms 13 Feb 2026 376th Steffan153 🇫🇮 874 89 110ms 18 Aug 2024 377th JayXon 🇺🇸 874 127 1,725ms 22 Apr 2024 378th stefangimmillaro 873 82 39ms 26 Apr 2025 379th JayXon 🇺🇸 872 57 149ms 1 May 2023 379th primo-ppcg 🇹🇭 872 57 151ms 1 May 2023 381st Irratix 🇳🇱 872 62 2ms 20 Dec 2021 381st ovs-code 🇩🇪 872 62 2ms 8 May 2023 381st sean-niemann 🇺🇸 872 62 2ms 18 Dec 2023 384th jared-hughes 872 126 15ms 7 Jul 2024 385th MeWhenI 🇻🇦 870 83 12ms 18 Jan 2026 386th btjones0 869 87 116ms 26 Jan 2021 386th lynn 869 87 121ms 7 Jul 2024 388th ovs-code 🇩🇪 868 81 458ms 15 Jun 2024 388th DialFrost 🇸🇬 868 81 463ms 7 Nov 2025 390th Irratix 🇳🇱 868 83 56ms 3 Jan 2022 390th ovs-code 🇩🇪 868 83 60ms 3 Jun 2024 390th DialFrost 🇸🇬 868 83 53ms 7 Nov 2025 393rd ovs-code 🇩🇪 867 43 92ms 21 Dec 2022 394th Espiobest 866 58 11ms 13 Mar 2021 394th MaxElf999 866 58 10ms 3 Oct 2022 394th Shanethegamer 🇺🇸 866 58 30ms 18 Jan 2023 394th Alex-x90 🇺🇸 866 58 30ms 23 Mar 2023 394th neel11235813 866 58 29ms 24 Mar 2023 394th Natanaelel 🇸🇪 866 58 11ms 11 Apr 2023 394th InigoK 🇺🇸 866 58 28ms 28 May 2023 First Prev 321–400 of 1,949 Next Last