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 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 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 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 440th albanian-laundromat 851 59 13ms 13 Apr 2025 452nd MeWhenI 🇻🇦 851 72 326ms 21 Nov 2021 453rd ovs-code 🇩🇪 851 138 454ms 17 Feb 2025 454th albanian-laundromat 850 77 9ms 22 Oct 2025 455th MeWhenI 🇻🇦 849 65 7ms 24 Dec 2024 456th Shanethegamer 🇺🇸 849 67 2,824ms 27 Oct 2024 456th pardouin 🇫🇷 849 67 3,445ms 23 Dec 2024 458th ovs-code 🇩🇪 849 73 70ms 17 Sep 2023 458th error256 849 73 64ms 19 Jun 2024 460th kg583 🇺🇸 849 86 9ms 1 Sep 2025 461st MeWhenI 🇻🇦 848 27 33ms 16 Mar 2022 462nd sisyphus-ppcg 🇦🇺 848 89 180ms 25 Jan 2021 462nd Bubbler-4 848 89 173ms 1 Jul 2021 464th CatsAreFluffy 847 33 50ms 31 Dec 2022 465th jared-hughes 847 55 9ms 31 Jul 2022 465th emgordon154 847 55 9ms 4 Mar 2025 467th primo-ppcg 🇹🇭 847 85 52ms 18 Jan 2022 467th 09cf 847 85 57ms 24 Sep 2023 469th emgordon154 845 131 1,782ms 29 Nov 2024 470th blaztoma 🇱🇹 844 44 3ms 17 days ago 471st dokutan 843 47 5ms 18 Jul 2025 472nd Shanethegamer 🇺🇸 843 50 34ms 22 Mar 2023 472nd MeWhenI 🇻🇦 843 50 34ms 22 Mar 2023 474th snoozingnewt 🇨🇦 843 102 104ms 4 days ago 475th MeWhenI 🇻🇦 843 104 267ms 8 Feb 2023 476th KatieLG 🇬🇧 842 57 411ms 15 Jan 2024 476th kg583 🇺🇸 842 57 371ms 15 Jan 2024 476th GrayJoKing 🇦🇺 842 57 408ms 15 Jan 2024 476th MeWhenI 🇻🇦 842 57 403ms 17 Jan 2024 476th Yewzir 🇧🇪 842 57 412ms 29 Feb 2024 476th SirBogman 🇺🇸 842 57 471ms 10 Jun 2024 476th lifthrasiir 🇰🇷 842 57 422ms 2 Dec 2024 476th GolfingSuccess 🇬🇷 842 57 436ms 24 Dec 2024 476th emgordon154 842 57 389ms 23 Apr 2025 476th Babafaba 842 57 411ms 20 days ago 476th CaedenHarper 🇨🇦 842 57 406ms 2 hours ago 487th MeWhenI 🇻🇦 842 76 37ms 16 Jun 2022 488th ovs-code 🇩🇪 842 87 106ms 8 Mar 2024 489th fuzzylojik-golf 🇺🇸 841 23 3ms 6 Sep 2025 490th btnlq 841 43 226ms 26 Jan 2021 490th primo-ppcg 🇹🇭 841 43 206ms 25 May 2021 492nd primo-ppcg 🇹🇭 839 87 29ms 25 Jan 2023 493rd acotis 839 90 144ms 3 Oct 2025 494th Yewzir 🇧🇪 839 132 1,746ms 27 Apr 2024 495th AGoyet 837 60 12ms 29 Jun 2022 495th jakobkordez 🇸🇮 837 60 15ms 8 Nov 2022 495th betaveros 837 60 18ms 31 Dec 2022 495th AlexanderFair 837 60 10ms 23 Jun 2023 495th Andriamanitra 🇫🇮 837 60 13ms 20 Jul 2023 495th dranjohn 837 60 49ms 15 Sep 2023 495th SB-945 837 60 10ms 20 Feb 2024 495th inverseLorentz 🇦🇺 837 60 10ms 9 Apr 2024 495th 051 🇸🇬 837 60 14ms 1 Aug 2024 495th KasperKivimaeki 🇫🇮 837 60 11ms 30 Jun 2025 495th vgamula 🇺🇦 837 60 31ms 28 Jul 2025 495th LuisGoncalves05 🇵🇹 837 60 10ms 29 Jul 2025 507th GrayJoKing 🇦🇺 837 84 462ms 28 Feb 2022 508th GrayJoKing 🇦🇺 834 55 135ms 6 Aug 2024 509th GrayJoKing 🇦🇺 833 57 36ms 5 Sep 2024 510th MeWhenI 🇻🇦 832 56 9ms 8 Jun 2022 510th Yewzir 🇧🇪 832 56 9ms 16 Nov 2023 510th voytxt 🇨🇿 832 56 9ms 25 Jan 2025 510th targrik 832 56 9ms 21 Feb 2025 514th sean-niemann 🇺🇸 832 77 41ms 18 Dec 2023 515th kritixilithos 831 58 3ms 29 May 2024 516th prplz 🇦🇺 831 65 2ms 24 Jan 2021 516th sisyphus-ppcg 🇦🇺 831 65 2ms 25 Jan 2021 516th inventshah 831 65 2ms 17 Nov 2022 516th 09cf 831 65 2ms 24 Sep 2023 516th DialFrost 🇸🇬 831 65 2ms 6 May 2025 521st primo-ppcg 🇹🇭 831 77 1,310ms 30 Nov 2021 522nd sisyphus-ppcg 🇦🇺 829 60 118ms 25 Feb 2021 522nd sean-niemann 🇺🇸 829 60 113ms 27 Dec 2023 524th neel11235813 828 58 356ms 15 Jan 2024 524th Kacarott 🇦🇺 828 58 342ms 15 Jan 2024 First Prev 451–525 of 1,881 Next Last