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 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 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 Multitap Input 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 ><> 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 ArkScript 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 ArkScript 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 Calendar 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 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 Multitap Input 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 380th wuduculfre 866 58 29ms 22 Jul 2025 380th HETHAT 🇩🇿 866 58 29ms 24 Sep 2025 380th CornerMercury 🇬🇧 866 58 30ms 24 Nov 2025 380th snoozingnewt 🇨🇦 866 58 20ms 1 Dec 2025 405th lukegustafson 🇺🇸 865 53 152ms 17 Jun 2025 406th stefangimmillaro 865 79 97ms 21 Jun 2023 407th janbehrens 🇩🇪 864 43 3ms 18 Jan 2021 408th Shanethegamer 🇺🇸 864 53 1,128ms 23 May 2021 408th MeWhenI 🇻🇦 864 53 996ms 16 Mar 2022 410th GrayJoKing 🇦🇺 864 90 106ms 9 Jun 2022 411th DaCuteRaccoon 863 54 10ms 9 Dec 2022 412th bitsandbeyond 🇳🇱 861 42 227ms 27 Oct 2025 413th primo-ppcg 🇹🇭 861 49 50ms 18 Jan 2022 414th sisyphus-ppcg 🇦🇺 861 56 2ms 12 Jul 2022 415th error256 861 72 62ms 11 Dec 2025 416th DialFrost 🇸🇬 861 76 3ms 14 Sep 2024 417th edsrzf 🇳🇿 859 53 747ms 31 Aug 2025 417th DialFrost 🇸🇬 859 53 800ms 1 Sep 2025 417th xsot 🇸🇬 859 53 849ms 22 days ago 420th GrayJoKing 🇦🇺 859 96 33ms 18 Jan 2023 420th lynn 859 96 39ms 6 Aug 2023 422nd Steffan153 🇫🇮 858 63 2ms 23 Mar 2023 422nd stefangimmillaro 858 63 2ms 18 Sep 2023 422nd xsot 🇸🇬 858 63 2ms 6 May 2025 422nd KasperKivimaeki 🇫🇮 858 63 2ms 14 Aug 2025 426th DialFrost 🇸🇬 857 56 446ms 15 Jan 2024 426th Steffan153 🇫🇮 857 56 375ms 16 Jan 2024 426th duckyluuk 🇳🇱 857 56 442ms 27 Mar 2024 429th MeWhenI 🇻🇦 857 80 443ms 7 Nov 2025 430th jared-hughes 857 84 62ms 31 Jul 2022 430th inventshah 857 84 59ms 17 Nov 2022 432nd primo-ppcg 🇹🇭 857 195 11ms 2 Aug 2023 433rd Lydxn 🇨🇦 855 100 25ms 13 Oct 2023 434th Lydxn 🇨🇦 854 63 2ms 15 Jan 2024 434th JayXon 🇺🇸 854 63 4ms 29 Jan 2024 434th rucin93 🇵🇱 854 63 2ms 19 Nov 2025 437th primo-ppcg 🇹🇭 854 78 122ms 27 Mar 2021 437th Shanethegamer 🇺🇸 854 78 125ms 18 Mar 2023 437th Ripick 854 78 172ms 2 Jun 2025 440th sean-niemann 🇺🇸 854 80 95ms 21 Sep 2023 440th Yewzir 🇧🇪 854 80 84ms 16 Nov 2023 442nd snoozingnewt 🇨🇦 854 102 115ms 5 Dec 2025 443rd nwellnhof 🇩🇪 852 43 159ms 21 Oct 2021 443rd primo-ppcg 🇹🇭 852 43 157ms 22 Apr 2022 445th MeWhenI 🇻🇦 852 72 400ms 21 Nov 2021 446th MeWhenI 🇻🇦 852 84 40ms 29 Apr 2025 447th marcin7Cd 851 59 10ms 16 Jan 2021 447th rak1507 🇬🇧 851 59 10ms 20 Jan 2021 447th AlephSquirrel 851 59 10ms 13 May 2021 447th rschwa6308 🇺🇸 851 59 10ms 28 Jun 2021 447th NewDefectus 🇮🇱 851 59 13ms 25 Oct 2021 447th jacksonhenry3 851 59 13ms 21 Dec 2021 447th NicoAdams 851 59 14ms 21 Dec 2021 447th aksyristos 851 59 11ms 28 Feb 2023 447th BREMAUCY 🇫🇷 851 59 11ms 27 Apr 2023 447th 2011-Chan-Ethan 851 59 10ms 17 Jul 2023 447th MarcMush 🇫🇷 851 59 10ms 12 Feb 2024 447th albanian-laundromat 851 59 13ms 13 Apr 2025 459th Shanethegamer 🇺🇸 851 67 3,522ms 27 Oct 2024 459th pardouin 🇫🇷 851 67 4,168ms 23 Dec 2024 461st kg583 🇺🇸 851 86 9ms 1 Sep 2025 462nd ovs-code 🇩🇪 851 138 1,457ms 17 Feb 2025 463rd albanian-laundromat 850 77 9ms 22 Oct 2025 464th MeWhenI 🇻🇦 849 65 6ms 24 Dec 2024 465th ovs-code 🇩🇪 849 73 67ms 17 Sep 2023 466th MeWhenI 🇻🇦 848 27 33ms 16 Mar 2022 467th sisyphus-ppcg 🇦🇺 848 89 118ms 25 Jan 2021 467th Bubbler-4 848 89 115ms 1 Jul 2021 469th CatsAreFluffy 847 33 50ms 31 Dec 2022 470th jared-hughes 847 55 10ms 31 Jul 2022 470th emgordon154 847 55 10ms 4 Mar 2025 472nd primo-ppcg 🇹🇭 847 85 53ms 18 Jan 2022 472nd 09cf 847 85 60ms 24 Sep 2023 474th emgordon154 845 131 1,613ms 29 Nov 2024 475th dokutan 843 47 5ms 18 Jul 2025 476th Shanethegamer 🇺🇸 843 50 38ms 22 Mar 2023 476th MeWhenI 🇻🇦 843 50 38ms 22 Mar 2023 478th MeWhenI 🇻🇦 843 104 267ms 8 Feb 2023 479th KatieLG 🇬🇧 842 57 464ms 15 Jan 2024 479th kg583 🇺🇸 842 57 426ms 15 Jan 2024 First Prev 401–480 of 1,902 Next Last