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 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 481st jared-hughes 847 55 10ms 31 Jul 2022 481st emgordon154 847 55 9ms 4 Mar 2025 483rd primo-ppcg 🇹🇭 847 85 53ms 18 Jan 2022 483rd 09cf 847 85 57ms 24 Sep 2023 485th emgordon154 847 131 1,613ms 29 Nov 2024 486th emgordon154 846 80 27ms 95 mins ago 487th dokutan 843 47 4ms 18 Jul 2025 488th Shanethegamer 🇺🇸 843 50 38ms 22 Mar 2023 488th MeWhenI 🇻🇦 843 50 37ms 22 Mar 2023 490th KatieLG 🇬🇧 843 57 439ms 15 Jan 2024 490th kg583 🇺🇸 843 57 395ms 15 Jan 2024 490th GrayJoKing 🇦🇺 843 57 446ms 15 Jan 2024 490th MeWhenI 🇻🇦 843 57 458ms 17 Jan 2024 490th Yewzir 🇧🇪 843 57 478ms 29 Feb 2024 490th SirBogman 🇺🇸 843 57 423ms 10 Jun 2024 490th lifthrasiir 🇰🇷 843 57 449ms 2 Dec 2024 490th GolfingSuccess 🇬🇷 843 57 406ms 24 Dec 2024 490th emgordon154 843 57 405ms 23 Apr 2025 490th Babafaba 843 57 453ms 19 Nov 2025 490th CaedenHarper 🇨🇦 843 57 381ms 9 Dec 2025 501st MeWhenI 🇻🇦 843 104 278ms 8 Feb 2023 502nd MeWhenI 🇻🇦 842 76 37ms 16 Jun 2022 503rd ovs-code 🇩🇪 842 87 110ms 8 Mar 2024 504th fuzzylojik-golf 🇺🇸 841 23 3ms 6 Sep 2025 505th btnlq 841 43 252ms 26 Jan 2021 505th primo-ppcg 🇹🇭 841 43 256ms 25 May 2021 507th primo-ppcg 🇹🇭 841 87 29ms 25 Jan 2023 508th Yewzir 🇧🇪 841 132 1,746ms 27 Apr 2024 508th DialFrost 🇸🇬 841 132 1,650ms 17 Jan 2026 510th acotis 839 90 128ms 3 Oct 2025 511th AGoyet 837 60 13ms 29 Jun 2022 511th jakobkordez 🇸🇮 837 60 16ms 8 Nov 2022 511th betaveros 837 60 20ms 31 Dec 2022 511th AlexanderFair 837 60 11ms 23 Jun 2023 511th Andriamanitra 🇫🇮 837 60 14ms 20 Jul 2023 511th dranjohn 837 60 47ms 15 Sep 2023 511th SB-945 837 60 10ms 20 Feb 2024 511th inverseLorentz 🇦🇺 837 60 11ms 9 Apr 2024 511th 051 🇸🇬 837 60 11ms 1 Aug 2024 511th vgamula 🇺🇦 837 60 33ms 28 Jul 2025 511th LuisGoncalves05 🇵🇹 837 60 11ms 29 Jul 2025 511th solisolu 837 60 11ms 1 Jan 2026 523rd GrayJoKing 🇦🇺 837 84 466ms 28 Feb 2022 524th GrayJoKing 🇦🇺 834 55 141ms 6 Aug 2024 525th GrayJoKing 🇦🇺 833 57 36ms 5 Sep 2024 526th MeWhenI 🇻🇦 832 56 10ms 8 Jun 2022 526th Yewzir 🇧🇪 832 56 9ms 16 Nov 2023 526th voytxt 🇨🇿 832 56 9ms 25 Jan 2025 526th targrik 832 56 9ms 21 Feb 2025 530th sean-niemann 🇺🇸 832 77 41ms 18 Dec 2023 531st kritixilithos 831 58 3ms 29 May 2024 532nd prplz 🇦🇺 831 65 2ms 24 Jan 2021 532nd sisyphus-ppcg 🇦🇺 831 65 2ms 25 Jan 2021 532nd inventshah 831 65 2ms 17 Nov 2022 532nd 09cf 831 65 2ms 24 Sep 2023 532nd DialFrost 🇸🇬 831 65 2ms 6 May 2025 537th primo-ppcg 🇹🇭 831 77 1,449ms 30 Nov 2021 538th sisyphus-ppcg 🇦🇺 829 60 104ms 25 Feb 2021 538th sean-niemann 🇺🇸 829 60 106ms 27 Dec 2023 540th neel11235813 828 58 434ms 15 Jan 2024 540th Kacarott 🇦🇺 828 58 403ms 15 Jan 2024 540th Shanethegamer 🇺🇸 828 58 370ms 16 Jan 2024 540th Natanaelel 🇸🇪 828 58 445ms 20 Jan 2024 540th AlephSquirrel 828 58 467ms 21 Jan 2024 540th namelessiw 828 58 402ms 15 Aug 2024 540th snoozingnewt 🇨🇦 828 58 477ms 1 Dec 2025 547th Irratix 🇳🇱 827 51 36ms 4 Mar 2022 548th GrayJoKing 🇦🇺 827 65 4ms 9 Nov 2023 549th Yewzir 🇧🇪 827 85 486ms 16 Nov 2023 550th MeWhenI 🇻🇦 824 78 111ms 14 Oct 2022 551st petroselo 823 61 10ms 16 Nov 2021 551st Irratix 🇳🇱 823 61 11ms 8 Dec 2021 551st cubed-guy 823 61 11ms 12 Feb 2022 551st CedricGebistorf 823 61 11ms 18 Feb 2022 551st jascotm 823 61 11ms 17 May 2022 551st Eilonlif 🇮🇱 823 61 31ms 9 Sep 2022 551st vishwathg 823 61 20ms 18 Sep 2022 551st ZakkkkAttackkkk 🇵🇭 823 61 12ms 19 Aug 2023 551st jtaxen 823 61 11ms 26 Mar 2024 551st ahmetdemirag 🇨🇾 823 61 19ms 5 Nov 2024 First Prev 481–560 of 1,929 Next Last