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 Continued Fractions 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Continued Fractions 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 800th ridingqwerty 🇺🇸 718 70 12ms 23 Feb 2024 800th mbittner20 718 70 11ms 15 Jul 2024 800th luuumine 🇫🇷 718 70 11ms 20 Oct 2025 804th edsrzf 🇳🇿 718 95 7ms 24 Nov 2024 805th igmcdowell 717 65 10ms 23 Nov 2021 806th msbranicky 717 67 496ms 17 Jan 2024 807th MeWhenI 🇻🇦 717 75 9ms 9 Oct 2023 808th prplz 🇦🇺 717 91 118ms 25 Jan 2021 809th marshallward 🇺🇸 716 100 41ms 7 May 2025 810th NewDefectus 🇮🇱 715 32 34ms 20 Dec 2021 811th NewDefectus 🇮🇱 714 21 2ms 14 Jan 2022 812th prplz 🇦🇺 714 52 3ms 5 Feb 2021 813th MarcMush 🇫🇷 714 69 304ms 12 Feb 2024 814th Herbert00709 🇵🇱 713 101 60ms 19 Nov 2024 815th emgordon154 712 80 4,144ms 9 Aug 2025 816th targrik 712 123 305ms 10 Jul 2025 817th NewDefectus 🇮🇱 711 76 2ms 25 Oct 2021 817th JohandeRuiter 🇳🇱 711 76 2ms 3 Dec 2023 819th MeWhenI 🇻🇦 711 90 1,425ms 14 Jun 2023 820th chordowl 710 92 116ms 17 Mar 2021 821st marcin7Cd 710 103 21ms 12 Feb 2021 822nd Feniske 🇫🇷 709 51 292ms 21 Nov 2023 823rd aadenboy 🇺🇸 709 86 2ms 16 Dec 2025 824th SnowballSH 708 71 11ms 12 Feb 2021 824th Andre3582 708 71 11ms 18 Mar 2021 824th PhysicDev 🇫🇷 708 71 10ms 20 May 2021 824th Alban-Boissard 708 71 12ms 10 Jun 2025 828th omurakazuaki 🇯🇵 706 66 11ms 18 Feb 2021 828th BambooleanLogic 🇸🇪 706 66 10ms 22 Aug 2022 828th coreynash 706 66 12ms 21 Oct 2023 828th two-bad 🇬🇧 706 66 10ms 24 Nov 2023 828th dylanarmstrong 706 66 12ms 15 Jan 2024 828th madeforlosers 706 66 10ms 5 Nov 2025 834th Stockoh 🇫🇷 706 68 427ms 24 Jun 2024 835th typeswitch-dev 🇵🇹 705 74 8ms 7 Aug 2023 836th msbranicky 704 65 1,289ms 12 Sep 2023 837th Shanethegamer 🇺🇸 704 91 39ms 16 Jun 2022 838th SnowballSH 703 60 59ms 12 Feb 2021 838th aksyristos 703 60 46ms 28 Feb 2023 838th Lv0Sys 🇵🇱 703 60 40ms 4 Dec 2025 841st primo-ppcg 🇹🇭 702 47 1,032ms 5 Feb 2022 842nd MeWhenI 🇻🇦 702 238 12ms 29 Aug 2023 843rd MeWhenI 🇻🇦 701 35 51ms 26 Jul 2022 843rd jared-hughes 701 35 48ms 31 Jul 2022 843rd Natanaelel 🇸🇪 701 35 51ms 18 Aug 2022 846th KasperKivimaeki 🇫🇮 701 125 299ms 3 Oct 2025 847th JayXon 🇺🇸 700 40 46ms 2 Jun 2021 848th UnderKoen 🇳🇱 700 134 13ms 20 Jan 2025 849th jared-hughes 699 44 6ms 31 Jul 2022 850th Shanethegamer 🇺🇸 699 77 13ms 9 Oct 2023 851st JGDoerrer 699 103 443ms 5 Jan 2022 851st tailorspy 699 103 63ms 29 Oct 2023 853rd LeeCamp 698 72 10ms 16 Feb 2022 853rd LukasFolwarczny 🇨🇿 698 72 10ms 16 Sep 2022 853rd CutSandstone 698 72 38ms 8 Jul 2024 856th jared-hughes 698 159 1,670ms 16 Sep 2025 857th targrik 696 57 6ms 26 Aug 2025 858th neihousaigaai 696 67 11ms 10 Apr 2021 859th boxjelly 694 94 114ms 21 Jan 2021 859th YAJUE114514 694 94 133ms 24 Jul 2025 861st dokutan 693 99 372ms 24 Sep 2025 862nd Espiobest 692 61 45ms 13 Feb 2021 862nd DaCuteRaccoon 692 61 51ms 9 Dec 2022 864th MeWhenI 🇻🇦 691 106 345ms 26 Aug 2023 865th Shanethegamer 🇺🇸 690 106 17ms 4 Oct 2024 866th msbranicky 689 95 5ms 11 Aug 2023 867th GolfingSuccess 🇬🇷 688 69 33ms 17 Aug 2024 868th richard-oelze 🇩🇪 688 73 30ms 4 Apr 2021 868th mauro-1 🇮🇹 688 73 9ms 18 Aug 2021 868th gchenfc 688 73 9ms 24 Jan 2022 868th hiichbindermax 688 73 11ms 26 Feb 2022 868th Omega65536 🇩🇪 688 73 11ms 24 Nov 2022 868th sandorstormen 688 73 11ms 18 Feb 2023 868th Mr-McChicken 688 73 10ms 15 Oct 2023 868th Masttest 688 73 10ms 21 Feb 2024 876th Andriamanitra 🇫🇮 687 95 148ms 20 Jul 2023 877th MeWhenI 🇻🇦 685 72 312ms 15 Feb 2023 877th Yewzir 🇧🇪 685 72 398ms 5 Apr 2024 879th msbranicky 685 89 2ms 26 Sep 2023 880th DialFrost 🇸🇬 684 67 159ms 3 Aug 2024 First Prev 801–880 of 1,934 Next Last