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 134ms 17 Jun 2025 406th stefangimmillaro 865 79 97ms 21 Jun 2023 407th janbehrens 🇩🇪 864 43 3ms 18 Jan 2021 408th Shanethegamer 🇺🇸 864 53 1,289ms 23 May 2021 408th MeWhenI 🇻🇦 864 53 1,274ms 16 Mar 2022 410th GrayJoKing 🇦🇺 864 90 130ms 9 Jun 2022 411th DaCuteRaccoon 863 54 10ms 9 Dec 2022 412th bitsandbeyond 🇳🇱 861 42 241ms 27 Oct 2025 413th primo-ppcg 🇹🇭 861 49 49ms 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 FortuiteMan 🇫🇷 860 84 12ms 45 hours ago 418th edsrzf 🇳🇿 859 53 747ms 31 Aug 2025 418th DialFrost 🇸🇬 859 53 800ms 1 Sep 2025 418th xsot 🇸🇬 859 53 849ms 21 Dec 2025 421st GrayJoKing 🇦🇺 859 96 33ms 18 Jan 2023 421st lynn 859 96 39ms 6 Aug 2023 423rd Steffan153 🇫🇮 858 63 2ms 23 Mar 2023 423rd stefangimmillaro 858 63 2ms 18 Sep 2023 423rd xsot 🇸🇬 858 63 2ms 6 May 2025 423rd KasperKivimaeki 🇫🇮 858 63 2ms 14 Aug 2025 427th DialFrost 🇸🇬 857 56 442ms 15 Jan 2024 427th Steffan153 🇫🇮 857 56 375ms 16 Jan 2024 427th duckyluuk 🇳🇱 857 56 368ms 27 Mar 2024 430th MeWhenI 🇻🇦 857 80 443ms 7 Nov 2025 431st jared-hughes 857 84 58ms 31 Jul 2022 431st inventshah 857 84 59ms 17 Nov 2022 433rd primo-ppcg 🇹🇭 857 195 11ms 2 Aug 2023 434th Lydxn 🇨🇦 855 100 25ms 13 Oct 2023 435th Lydxn 🇨🇦 854 63 2ms 15 Jan 2024 435th JayXon 🇺🇸 854 63 4ms 29 Jan 2024 435th rucin93 🇵🇱 854 63 2ms 19 Nov 2025 438th primo-ppcg 🇹🇭 854 78 122ms 27 Mar 2021 438th Shanethegamer 🇺🇸 854 78 125ms 18 Mar 2023 438th Ripick 854 78 172ms 2 Jun 2025 441st sean-niemann 🇺🇸 854 80 95ms 21 Sep 2023 441st Yewzir 🇧🇪 854 80 76ms 16 Nov 2023 443rd snoozingnewt 🇨🇦 854 102 117ms 5 Dec 2025 444th nwellnhof 🇩🇪 852 43 145ms 21 Oct 2021 444th primo-ppcg 🇹🇭 852 43 157ms 22 Apr 2022 446th MeWhenI 🇻🇦 852 72 425ms 21 Nov 2021 447th MeWhenI 🇻🇦 852 84 40ms 29 Apr 2025 448th marcin7Cd 851 59 10ms 16 Jan 2021 448th rak1507 🇬🇧 851 59 10ms 20 Jan 2021 448th AlephSquirrel 851 59 10ms 13 May 2021 448th rschwa6308 🇺🇸 851 59 10ms 28 Jun 2021 448th NewDefectus 🇮🇱 851 59 13ms 25 Oct 2021 448th jacksonhenry3 851 59 13ms 21 Dec 2021 448th NicoAdams 851 59 14ms 21 Dec 2021 448th aksyristos 851 59 11ms 28 Feb 2023 448th BREMAUCY 🇫🇷 851 59 11ms 27 Apr 2023 448th 2011-Chan-Ethan 851 59 10ms 17 Jul 2023 448th MarcMush 🇫🇷 851 59 10ms 12 Feb 2024 448th albanian-laundromat 851 59 13ms 13 Apr 2025 448th plcc0 851 59 11ms 5 days ago 448th CommandLeo 🇮🇹 851 59 11ms 10 hours ago 462nd Shanethegamer 🇺🇸 851 67 2,308ms 27 Oct 2024 462nd pardouin 🇫🇷 851 67 2,277ms 23 Dec 2024 464th kg583 🇺🇸 851 86 9ms 1 Sep 2025 465th ovs-code 🇩🇪 851 138 1,442ms 17 Feb 2025 466th albanian-laundromat 850 77 9ms 22 Oct 2025 467th MeWhenI 🇻🇦 849 65 7ms 24 Dec 2024 468th ovs-code 🇩🇪 849 73 67ms 17 Sep 2023 469th MeWhenI 🇻🇦 848 27 33ms 16 Mar 2022 470th sisyphus-ppcg 🇦🇺 848 89 118ms 25 Jan 2021 470th Bubbler-4 848 89 115ms 1 Jul 2021 472nd CatsAreFluffy 847 33 50ms 31 Dec 2022 473rd jared-hughes 847 55 10ms 31 Jul 2022 473rd emgordon154 847 55 10ms 4 Mar 2025 475th primo-ppcg 🇹🇭 847 85 53ms 18 Jan 2022 475th 09cf 847 85 60ms 24 Sep 2023 477th emgordon154 845 131 1,613ms 29 Nov 2024 478th dokutan 843 47 5ms 18 Jul 2025 479th Shanethegamer 🇺🇸 843 50 39ms 22 Mar 2023 479th MeWhenI 🇻🇦 843 50 41ms 22 Mar 2023 First Prev 401–480 of 1,903 Next Last