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 377th CornerMercury 🇬🇧 866 58 30ms 24 Nov 2025 377th snoozingnewt 🇨🇦 866 58 20ms 1 Dec 2025 403rd MeWhenI 🇻🇦 866 87 11ms 30 Oct 2021 404th lukegustafson 🇺🇸 865 53 152ms 17 Jun 2025 405th stefangimmillaro 865 79 97ms 21 Jun 2023 406th janbehrens 🇩🇪 864 43 3ms 18 Jan 2021 407th Shanethegamer 🇺🇸 864 53 1,128ms 23 May 2021 407th MeWhenI 🇻🇦 864 53 996ms 16 Mar 2022 409th GrayJoKing 🇦🇺 864 90 93ms 9 Jun 2022 410th DaCuteRaccoon 863 54 10ms 9 Dec 2022 411th bitsandbeyond 🇳🇱 861 42 227ms 27 Oct 2025 412th primo-ppcg 🇹🇭 861 49 50ms 18 Jan 2022 413th sisyphus-ppcg 🇦🇺 861 56 2ms 12 Jul 2022 414th error256 861 72 62ms 22 days ago 415th DialFrost 🇸🇬 861 76 3ms 14 Sep 2024 416th edsrzf 🇳🇿 859 53 747ms 31 Aug 2025 416th DialFrost 🇸🇬 859 53 800ms 1 Sep 2025 416th xsot 🇸🇬 859 53 849ms 13 days ago 419th GrayJoKing 🇦🇺 859 96 33ms 18 Jan 2023 419th lynn 859 96 39ms 6 Aug 2023 421st Steffan153 🇫🇮 858 63 2ms 23 Mar 2023 421st stefangimmillaro 858 63 2ms 18 Sep 2023 421st xsot 🇸🇬 858 63 2ms 6 May 2025 421st KasperKivimaeki 🇫🇮 858 63 2ms 14 Aug 2025 425th DialFrost 🇸🇬 857 56 446ms 15 Jan 2024 425th Steffan153 🇫🇮 857 56 375ms 16 Jan 2024 425th duckyluuk 🇳🇱 857 56 442ms 27 Mar 2024 428th MeWhenI 🇻🇦 857 80 443ms 7 Nov 2025 429th jared-hughes 857 84 62ms 31 Jul 2022 429th inventshah 857 84 59ms 17 Nov 2022 431st primo-ppcg 🇹🇭 857 195 11ms 2 Aug 2023 432nd Lydxn 🇨🇦 855 100 25ms 13 Oct 2023 433rd Lydxn 🇨🇦 854 63 2ms 15 Jan 2024 433rd JayXon 🇺🇸 854 63 4ms 29 Jan 2024 433rd rucin93 🇵🇱 854 63 2ms 19 Nov 2025 436th primo-ppcg 🇹🇭 854 78 122ms 27 Mar 2021 436th Shanethegamer 🇺🇸 854 78 125ms 18 Mar 2023 436th Ripick 854 78 172ms 2 Jun 2025 439th sean-niemann 🇺🇸 854 80 95ms 21 Sep 2023 439th Yewzir 🇧🇪 854 80 84ms 16 Nov 2023 441st snoozingnewt 🇨🇦 854 102 115ms 5 Dec 2025 442nd nwellnhof 🇩🇪 852 43 159ms 21 Oct 2021 442nd primo-ppcg 🇹🇭 852 43 157ms 22 Apr 2022 444th MeWhenI 🇻🇦 852 84 40ms 29 Apr 2025 445th marcin7Cd 851 59 10ms 16 Jan 2021 445th rak1507 🇬🇧 851 59 10ms 20 Jan 2021 445th AlephSquirrel 851 59 10ms 13 May 2021 445th rschwa6308 🇺🇸 851 59 10ms 28 Jun 2021 445th NewDefectus 🇮🇱 851 59 13ms 25 Oct 2021 445th jacksonhenry3 851 59 13ms 21 Dec 2021 445th NicoAdams 851 59 14ms 21 Dec 2021 445th aksyristos 851 59 11ms 28 Feb 2023 445th BREMAUCY 🇫🇷 851 59 11ms 27 Apr 2023 445th 2011-Chan-Ethan 851 59 10ms 17 Jul 2023 445th MarcMush 🇫🇷 851 59 10ms 12 Feb 2024 445th albanian-laundromat 851 59 13ms 13 Apr 2025 457th Shanethegamer 🇺🇸 851 67 3,522ms 27 Oct 2024 457th pardouin 🇫🇷 851 67 4,168ms 23 Dec 2024 459th MeWhenI 🇻🇦 851 72 400ms 21 Nov 2021 460th kg583 🇺🇸 851 86 9ms 1 Sep 2025 461st ovs-code 🇩🇪 851 138 1,457ms 17 Feb 2025 462nd albanian-laundromat 850 77 9ms 22 Oct 2025 463rd MeWhenI 🇻🇦 849 65 6ms 24 Dec 2024 464th ovs-code 🇩🇪 849 73 67ms 17 Sep 2023 465th MeWhenI 🇻🇦 848 27 33ms 16 Mar 2022 466th sisyphus-ppcg 🇦🇺 848 89 118ms 25 Jan 2021 466th Bubbler-4 848 89 115ms 1 Jul 2021 468th CatsAreFluffy 847 33 50ms 31 Dec 2022 469th jared-hughes 847 55 10ms 31 Jul 2022 469th emgordon154 847 55 10ms 4 Mar 2025 471st primo-ppcg 🇹🇭 847 85 53ms 18 Jan 2022 471st 09cf 847 85 60ms 24 Sep 2023 473rd emgordon154 845 131 1,613ms 29 Nov 2024 474th blaztoma 🇱🇹 844 44 3ms 22 Nov 2025 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 1,894 Next Last