Catalan Numbers 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 Gray Code Decoder Gray Code Encoder 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 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 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder 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 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 801st CornerMercury 🇬🇧 817 75 114ms 27 Nov 2025 802nd lynn 817 148 138ms 12 Jan 2025 803rd snoozingnewt 🇨🇦 815 48 29ms 3 Dec 2025 804th Yewzir 🇧🇪 813 61 1,523ms 7 May 2024 805th iakolzin 809 53 10ms 27 May 2022 805th nullie 809 53 11ms 7 Jun 2022 805th yzhs 🇩🇪 809 53 14ms 22 Jun 2022 805th markusgraube 809 53 13ms 24 Apr 2023 805th mstang107 809 53 11ms 20 Dec 2023 805th smokestacklightnin 🇺🇸 809 53 11ms 10 Jan 2024 805th Mabeloid 🇳🇴 809 53 9ms 21 Sep 2024 805th agreegious 809 53 12ms 14 Nov 2024 805th 0dyse 809 53 10ms 29 Apr 2025 805th piano-miles 809 53 10ms 9 May 2025 805th poodletricea 809 53 10ms 9 Jan 2026 805th TheSecondComing123 809 53 11ms 4 Feb 2026 817th tatzyr 🇯🇵 808 38 36ms 14 Nov 2024 817th madex 🇩🇪 808 38 37ms 14 days ago 819th dokutan 807 90 436ms 27 Feb 2026 820th albanian-laundromat 🇺🇸 806 48 378ms 7 Oct 2025 821st MeWhenI 🇻🇦 806 227 308ms 29 Dec 2024 822nd blaztoma 🇱🇹 805 57 120ms 22 Aug 2025 823rd albanian-laundromat 🇺🇸 805 117 1,451ms 5 Oct 2025 824th kmathis22 805 135 452ms 23 Oct 2025 825th jerrandolph 805 146 344ms 23 Sep 2025 826th MeWhenI 🇻🇦 804 97 212ms 2 Jul 2023 827th j-Ewan 802 47 427ms 11 Feb 2022 827th czylabsonasa 🇭🇺 802 47 263ms 14 Jun 2022 829th emplv 🇱🇻 802 79 110ms 20 Dec 2022 829th DialFrost 🇸🇬 802 79 125ms 23 Mar 2025 831st Feniske 🇫🇷 801 38 304ms 6 Nov 2023 831st Yewzir 🇧🇪 801 38 263ms 7 May 2024 833rd albanian-laundromat 🇺🇸 800 44 1,239ms 25 Sep 2025 833rd Yewzir 🇧🇪 800 44 1,057ms 15 Nov 2025 835th madex 🇩🇪 800 62 1,519ms 5 days ago 836th MeWhenI 🇻🇦 800 85 2,393ms 27 Oct 2024 837th Betuaredead 800 147 311ms 21 Jan 2023 838th error256 799 51 77ms 15 Jan 2025 839th dokutan 799 136 469ms 7 Nov 2025 840th Matgc04 798 91 423ms 17 Nov 2023 841st msbranicky 794 54 11ms 23 Aug 2023 841st Code-Coder-coder 794 54 10ms 12 Oct 2025 843rd Ripick 794 148 394ms 16 Feb 2023 844th nipzu 793 98 65ms 4 Feb 2022 845th SuperFola 793 2,800 37ms 11 Mar 2026 846th namelessiw 790 49 476ms 19 Aug 2024 847th dokutan 790 79 478ms 27 Feb 2026 848th stefangimmillaro 790 86 2,525ms 4 Nov 2024 849th Shanethegamer 🇺🇸 790 92 420ms 29 Jan 2022 850th xsot 🇸🇬 789 128 70ms 13 Jun 2025 851st Yewzir 🇧🇪 788 39 35ms 7 May 2024 851st codereport 🇨🇦 788 39 32ms 21 Apr 2025 851st Chara-0x 788 39 35ms 18 Sep 2025 851st dokutan 788 39 36ms 26 Feb 2026 855th SniperSmiley 🇺🇸 787 25 39ms 4 Sep 2022 856th annaproxy 786 65 3ms 3 Oct 2022 856th Shanethegamer 🇺🇸 786 65 6ms 19 Dec 2023 858th stellartux 785 48 306ms 1 Jan 2024 859th didion0 🇺🇸 785 50 9ms 16 Feb 2022 859th Natanaelel 🇸🇪 785 50 9ms 3 Jan 2024 859th weliveinhell 🇭🇹 785 50 9ms 11 Jan 2024 859th inverseLorentz 🇦🇺 785 50 11ms 1 Apr 2024 863rd albanian-laundromat 🇺🇸 784 52 72ms 24 Dec 2025 864th stefangimmillaro 783 159 28ms 4 May 2023 865th jared-hughes 782 139 501ms 24 Sep 2025 866th blaztoma 🇱🇹 781 39 243ms 25 Nov 2025 867th hamhub7 781 93 437ms 3 Aug 2022 867th MeWhenI 🇻🇦 781 93 488ms 15 Oct 2022 869th ZakkkkAttackkkk 🇵🇭 779 55 10ms 30 Jan 2022 869th Emutis 🇱🇹 779 55 12ms 27 Oct 2024 871st DialFrost 🇸🇬 779 68 6ms 7 Dec 2024 871st pardouin 🇫🇷 779 68 6ms 20 Mar 2025 873rd kimbo 🇺🇸 779 151 315ms 25 Dec 2022 874th rak1507 🇬🇧 777 52 31ms 29 Jan 2022 875th Shanethegamer 🇺🇸 777 59 122ms 29 Jan 2022 875th Z-snails 777 59 129ms 28 Feb 2023 877th jared-hughes 776 307 20ms 8 Jul 2024 878th KatieLG 🇬🇧 775 64 1,635ms 16 Oct 2022 879th primo-ppcg 🇹🇭 775 332 64ms 25 Jun 2022 880th CheeseCake628 🇳🇴 774 50 388ms 18 Oct 2025 First Prev 801–880 of 2,181 Next Last