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 826th JGDoerrer 699 103 384ms 5 Jan 2022 826th tailorspy 699 103 54ms 29 Oct 2023 828th LeeCamp 698 72 11ms 16 Feb 2022 828th LukasFolwarczny 🇨🇿 698 72 11ms 16 Sep 2022 828th CutSandstone 698 72 36ms 8 Jul 2024 831st neihousaigaai 696 67 10ms 10 Apr 2021 832nd jared-hughes 696 159 1,670ms 16 Sep 2025 833rd DialFrost 🇸🇬 695 56 84ms 22 Jul 2024 834th targrik 695 57 5ms 26 Aug 2025 835th boxjelly 694 94 114ms 21 Jan 2021 835th YAJUE114514 694 94 133ms 24 Jul 2025 837th dokutan 693 99 805ms 24 Sep 2025 838th Espiobest 691 61 34ms 13 Feb 2021 838th DaCuteRaccoon 691 61 34ms 9 Dec 2022 840th edsrzf 🇳🇿 691 91 19ms 21 Dec 2024 841st MeWhenI 🇻🇦 691 106 341ms 26 Aug 2023 842nd Shanethegamer 🇺🇸 690 106 17ms 4 Oct 2024 843rd msbranicky 689 95 5ms 11 Aug 2023 844th GolfingSuccess 🇬🇷 688 69 33ms 17 Aug 2024 845th richard-oelze 🇩🇪 688 73 29ms 4 Apr 2021 845th mauro-1 🇮🇹 688 73 9ms 18 Aug 2021 845th gchenfc 688 73 9ms 24 Jan 2022 845th hiichbindermax 688 73 11ms 26 Feb 2022 845th Omega65536 🇩🇪 688 73 11ms 24 Nov 2022 845th sandorstormen 688 73 11ms 18 Feb 2023 845th Mr-McChicken 688 73 11ms 15 Oct 2023 845th Masttest 688 73 10ms 21 Feb 2024 853rd Andriamanitra 🇫🇮 687 95 148ms 20 Jul 2023 854th MeWhenI 🇻🇦 685 72 307ms 15 Feb 2023 854th Yewzir 🇧🇪 685 72 342ms 5 Apr 2024 856th DialFrost 🇸🇬 684 67 131ms 3 Aug 2024 857th madex 🇩🇪 684 79 2ms 11 Jul 2024 858th msbranicky 684 89 1ms 26 Sep 2023 859th AdrienHache 🇫🇷 682 41 50ms 23 Oct 2023 860th Yewzir 🇧🇪 681 90 327ms 14 Oct 2023 861st jameslindesay 679 74 11ms 24 Feb 2021 861st PkmnQ 679 74 37ms 5 May 2024 861st HumanoidCPU 679 74 11ms 3 Jun 2024 861st RedzGoose 🇦🇺 679 74 13ms 14 Oct 2024 861st yokasuretsu 679 74 10ms 13 Jan 2025 866th I-Love-47 🇺🇦 679 106 56ms 10 Feb 2022 867th dokutan 678 59 3ms 18 Jul 2025 868th Shanethegamer 🇺🇸 678 126 24ms 8 Jul 2021 869th janbehrens 🇩🇪 673 68 1,067ms 9 Apr 2021 870th AdrienHache 🇫🇷 673 91 374ms 31 Dec 2023 871st msbranicky 672 80 4ms 11 Oct 2023 872nd rboath 671 58 88ms 8 Jan 2025 873rd 5quiwyrm 670 54 254ms 5 Dec 2024 874th Trunksistor 🇫🇷 670 75 10ms 25 May 2022 874th celiendonze 🇨🇭 670 75 11ms 16 Jun 2023 874th qwjhvbxi 670 75 10ms 9 Feb 2024 874th wenbang24 670 75 14ms 6 Apr 2024 878th tatzyr 🇯🇵 669 63 33ms 29 Dec 2024 879th CaedenHarper 🇨🇦 666 70 9ms 31 Jan 2025 880th SirBogman 🇺🇸 666 108 54ms 3 Jan 2022 881st Natanaelel 🇸🇪 663 56 3ms 20 Jan 2024 882nd DialFrost 🇸🇬 663 75 112ms 3 Jun 2025 883rd 77Tigers 662 114 133ms 9 Apr 2024 884th Waffle3z 661 76 11ms 20 Jan 2021 884th hellwue 661 76 10ms 16 Nov 2023 884th dokutan 661 76 17ms 24 Mar 2025 887th dokutan 658 69 740ms 30 Aug 2025 888th HumanoidCPU 658 73 408ms 3 Jun 2024 889th uttumuttu 🇫🇮 656 71 9ms 8 Jan 2022 889th olleicua 🇺🇸 656 71 9ms 20 Feb 2024 891st emgordon154 655 70 130ms 6 Sep 2024 892nd msbranicky 654 134 277ms 3 Oct 2023 893rd albanian-laundromat 653 98 39ms 15 days ago 894th olivermrose 🇺🇸 652 57 3ms 24 Aug 2021 895th f-tucker 652 77 11ms 2 Feb 2024 895th undefinedRyan 652 77 11ms 19 Apr 2025 895th Emutis 🇱🇹 652 77 10ms 12 Sep 2025 898th dokutan 652 94 326ms 18 Jul 2025 899th boxjelly 649 65 34ms 11 Feb 2021 899th msbranicky 649 65 38ms 12 Sep 2023 First Prev 826–900 of 1,884 Next Last