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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 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 ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 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 523rd Natanaelel 🇸🇪 828 58 452ms 20 Jan 2024 523rd AlephSquirrel 828 58 405ms 21 Jan 2024 523rd CaedenHarper 🇨🇦 828 58 388ms 8 Aug 2024 523rd namelessiw 828 58 485ms 15 Aug 2024 523rd snoozingnewt 🇺🇸 828 58 385ms 35 hours ago 531st m-ender 🇩🇪 828 91 164ms 23 Apr 2021 532nd GrayJoKing 🇦🇺 827 65 4ms 9 Nov 2023 533rd Yewzir 🇧🇪 827 85 371ms 16 Nov 2023 534th Irratix 🇳🇱 826 51 42ms 4 Mar 2022 535th MeWhenI 🇻🇦 824 78 103ms 14 Oct 2022 536th petroselo 823 61 10ms 16 Nov 2021 536th Irratix 🇳🇱 823 61 14ms 8 Dec 2021 536th cubed-guy 823 61 11ms 12 Feb 2022 536th CedricGebistorf 823 61 10ms 18 Feb 2022 536th jascotm 823 61 11ms 17 May 2022 536th Eilonlif 🇮🇱 823 61 29ms 9 Sep 2022 536th vishwathg 823 61 20ms 18 Sep 2022 536th ZakkkkAttackkkk 🇵🇭 823 61 13ms 19 Aug 2023 536th jtaxen 823 61 10ms 26 Mar 2024 536th ahmetdemirag 🇨🇾 823 61 19ms 5 Nov 2024 536th plcc0 823 61 18ms 9 Mar 2025 536th Pyroan 823 61 12ms 16 Mar 2025 536th tri1212 🇻🇳 823 61 10ms 16 Apr 2025 549th Shanethegamer 🇺🇸 823 83 82ms 19 Apr 2022 550th alemelis 822 60 1,808ms 14 Aug 2024 551st GrayJoKing 🇦🇺 822 81 115ms 14 Mar 2022 551st MeWhenI 🇻🇦 822 81 114ms 15 Nov 2022 553rd ovs-code 🇩🇪 819 56 130ms 3 Aug 2024 554th NewDefectus 🇮🇱 818 57 9ms 1 Nov 2021 555th primo-ppcg 🇹🇭 818 66 3ms 18 Jan 2021 555th jared-hughes 818 66 3ms 31 Jul 2022 557th inventshah 817 59 2ms 18 May 2022 557th MeWhenI 🇻🇦 817 59 3ms 18 May 2022 559th m-tkach 🇺🇦 817 101 29ms 18 Jan 2024 560th Shanethegamer 🇺🇸 816 84 343ms 25 Sep 2025 561st Yewzir 🇧🇪 815 61 105ms 16 Nov 2023 562nd ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 562nd inventshah 815 66 2ms 22 Oct 2023 564th BREMAUCY 🇫🇷 814 59 393ms 20 Feb 2024 565th Steffan153 🇫🇮 814 90 4ms 10 Feb 2023 566th duckyluuk 🇳🇱 812 70 2,887ms 28 Oct 2024 567th Shanethegamer 🇺🇸 811 108 261ms 26 Sep 2021 568th janlelis 810 52 52ms 18 Jan 2021 568th hiddicop 🇸🇪 810 52 43ms 29 Jan 2021 568th prplz 🇦🇺 810 52 38ms 22 Apr 2021 568th anter69 🇭🇺 810 52 41ms 14 Jan 2022 568th OhmNomNom 810 52 84ms 12 Oct 2022 568th olleicua 🇺🇸 810 52 37ms 25 Feb 2024 568th emgordon154 810 52 42ms 26 Nov 2024 575th vezzick 810 62 12ms 12 Mar 2021 575th schachmattmatt 810 62 11ms 18 Aug 2021 575th cooljoseph1 810 62 20ms 6 May 2022 575th fredrik-bakke 🇳🇴 810 62 19ms 29 Sep 2022 575th nkoppel 810 62 10ms 19 Oct 2022 575th AodhanDalton 810 62 10ms 4 Nov 2022 575th nstearns96 🇬🇧 810 62 18ms 28 Nov 2022 575th adamnielson42 🇺🇸 810 62 11ms 10 Jan 2024 575th jbjd 810 62 37ms 2 Mar 2024 575th wh3n3v3r 🇨🇿 810 62 10ms 12 Nov 2024 575th jacekwladzinski 810 62 11ms 4 Oct 2025 575th Mabeloid 🇳🇴 810 62 12ms 26 Oct 2025 587th Steffan153 🇫🇮 810 79 1,365ms 23 Mar 2023 587th Yewzir 🇧🇪 810 79 40ms 16 Nov 2023 589th Shanethegamer 🇺🇸 810 96 80ms 9 Jun 2022 590th GolfingSuccess 🇬🇷 808 81 11ms 9 Sep 2022 591st KasperKivimaeki 🇫🇮 808 88 58ms 5 days ago 592nd Dazza314 🇬🇧 806 24 6ms 16 Apr 2021 593rd emgordon154 806 67 3ms 22 Apr 2025 594th Shanethegamer 🇺🇸 806 76 322ms 13 Dec 2021 595th primo-ppcg 🇹🇭 806 78 72ms 13 Oct 2023 596th m-tkach 🇺🇦 806 106 38ms 25 Apr 2022 597th ArmaanAS 803 58 9ms 4 Apr 2021 597th itsh01 803 58 9ms 18 Nov 2021 599th Steffan153 🇫🇮 803 60 2ms 6 May 2023 600th stefangimmillaro 803 80 99ms 23 Sep 2023 First Prev 526–600 of 1,876 Next Last