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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 879th qwjhvbxi 670 75 10ms 9 Feb 2024 879th wenbang24 670 75 14ms 6 Apr 2024 883rd tatzyr 🇯🇵 669 63 37ms 29 Dec 2024 884th DialFrost 🇸🇬 666 56 81ms 22 Jul 2024 885th CaedenHarper 🇨🇦 666 70 10ms 31 Jan 2025 886th SirBogman 🇺🇸 666 108 58ms 3 Jan 2022 887th Natanaelel 🇸🇪 663 56 3ms 20 Jan 2024 888th DialFrost 🇸🇬 663 75 110ms 3 Jun 2025 889th 77Tigers 662 114 135ms 9 Apr 2024 890th Waffle3z 661 76 11ms 20 Jan 2021 890th hellwue 661 76 10ms 16 Nov 2023 890th dokutan 661 76 17ms 24 Mar 2025 893rd dokutan 660 69 1,246ms 30 Aug 2025 894th HumanoidCPU 658 73 421ms 3 Jun 2024 895th uttumuttu 🇫🇮 656 71 10ms 8 Jan 2022 895th olleicua 🇺🇸 656 71 10ms 20 Feb 2024 897th emgordon154 655 70 141ms 6 Sep 2024 898th msbranicky 654 134 253ms 3 Oct 2023 899th dokutan 653 94 391ms 18 Jul 2025 900th albanian-laundromat 653 98 39ms 28 Nov 2025 901st olivermrose 🇺🇸 652 57 3ms 24 Aug 2021 902nd f-tucker 652 77 11ms 2 Feb 2024 902nd undefinedRyan 652 77 11ms 19 Apr 2025 902nd Emutis 🇱🇹 652 77 10ms 12 Sep 2025 905th boxjelly 649 65 41ms 11 Feb 2021 905th msbranicky 649 65 43ms 12 Sep 2023 907th Shanethegamer 🇺🇸 649 97 7ms 22 Dec 2023 908th janbehrens 🇩🇪 649 135 254ms 13 Jun 2021 909th jwhear 🇺🇸 649 171 1,847ms 1 Oct 2024 910th MeWhenI 🇻🇦 646 71 137ms 3 Aug 2024 911th AkashTandon167 644 78 10ms 25 May 2021 911th jhpaques 🇫🇷 644 78 21ms 30 Nov 2022 913th johnnythedoggie 644 106 104ms 3 Mar 2021 913th snoozingnewt 🇨🇦 644 106 90ms 21 Nov 2025 915th rboath 643 58 88ms 8 Jan 2025 916th SirBogman 🇺🇸 643 84 2ms 14 Dec 2021 917th emgordon154 643 98 10ms 10 Dec 2024 918th annaproxy 642 93 95ms 24 Dec 2022 919th NickTheEASDude 🇺🇸 642 95 1ms 1 Jul 2024 920th MateuszPietrzak 🇵🇱 642 112 56ms 16 Jan 2024 921st CaedenHarper 🇨🇦 641 107 529ms 6 Oct 2025 922nd nephila-nacrea 🇬🇧 640 58 3ms 3 Feb 2021 923rd KatieLG 🇬🇧 640 77 234ms 2 Oct 2022 924th alomiF 640 102 124ms 4 Nov 2024 925th Bubbler-4 639 97 72ms 13 Sep 2023 926th Maznek 638 73 10ms 30 Jun 2023 927th MeWhenI 🇻🇦 637 82 10ms 21 Jul 2023 928th ashtraypettingzoo 🇺🇸 636 36 32ms 23 Feb 2023 929th twocatsinatrenchcoat 636 79 9ms 29 Mar 2022 929th SniperSmiley 🇺🇸 636 79 35ms 23 Jun 2022 929th Glinte 636 79 16ms 14 Dec 2023 929th Bmrl7 636 79 14ms 19 Mar 2024 933rd Shanethegamer 🇺🇸 635 57 247ms 27 Jul 2023 934th sreyfe 635 119 173ms 9 Jun 2024 935th edsrzf 🇳🇿 635 138 247ms 21 Dec 2024 936th MeWhenI 🇻🇦 633 90 2,143ms 24 Oct 2024 937th SirFireball3521 632 58 114ms 2 Mar 2023 938th dokutan 632 76 511ms 24 Mar 2025 939th emgordon154 632 186 1,474ms 30 May 2025 940th NewDefectus 🇮🇱 630 59 6ms 25 Oct 2021 941st janbehrens 🇩🇪 629 136 25ms 9 Jul 2021 942nd bastienvoirin 🇫🇷 628 80 16ms 4 Feb 2021 942nd argusdusty 🇺🇸 628 80 17ms 25 Mar 2021 942nd OppositeShark 628 80 11ms 9 Apr 2022 942nd WillowWispy 628 80 9ms 16 Mar 2025 946th AkashTandon167 628 86 2ms 25 May 2021 946th solisolu 628 86 2ms 26 days ago 948th Shanethegamer 🇺🇸 625 64 2ms 26 Jul 2023 949th emgordon154 622 151 8ms 6 Oct 2024 950th Herbert00709 🇵🇱 621 87 2ms 19 Nov 2024 951st janbehrens 🇩🇪 620 68 42ms 18 Jan 2021 952nd vodker1 620 81 10ms 9 Mar 2022 952nd tooningelaere 620 81 9ms 5 Dec 2022 954th Yewzir 🇧🇪 619 64 5ms 16 Nov 2023 955th dokutan 618 106 11ms 24 Mar 2025 956th Shanethegamer 🇺🇸 614 85 4ms 21 Dec 2024 957th Natanaelel 🇸🇪 614 88 2ms 9 May 2024 958th codename68 614 123 138ms 13 Aug 2022 959th fynnkroeger 613 82 10ms 24 Mar 2021 959th BrenSchaap 613 82 10ms 21 Oct 2021 First Prev 881–960 of 1,907 Next Last