Catalan Numbers in all languages in chars. 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 Chars Time Submitted 800th Natanaelel 🇸🇪 785 50 11ms 3 Jan 2024 800th weliveinhell 🇭🇹 785 50 10ms 11 Jan 2024 800th inverseLorentz 🇦🇺 785 50 9ms 1 Apr 2024 800th JOrE20 🇺🇸 785 50 9ms 15 Nov 2025 805th annaproxy 785 65 3ms 3 Oct 2022 806th KatieLG 🇬🇧 784 47 338ms 15 Jan 2024 806th Yewzir 🇧🇪 784 47 381ms 7 May 2024 808th Shanethegamer 🇺🇸 784 65 6ms 19 Dec 2023 808th Steffan153 🇫🇮 784 65 5ms 20 Dec 2023 810th stellartux 781 47 317ms 1 Jan 2024 811th albanian-laundromat 781 52 88ms 25 days ago 812th jared-hughes 781 139 430ms 24 Sep 2025 813th stefangimmillaro 781 159 29ms 4 May 2023 814th hamhub7 780 93 388ms 3 Aug 2022 814th MeWhenI 🇻🇦 780 93 415ms 15 Oct 2022 816th blaztoma 🇱🇹 779 39 254ms 25 Nov 2025 817th 2011-Chan-Ethan 779 55 10ms 14 Jul 2023 817th cuboids 779 55 10ms 10 Jul 2024 817th jatloe 779 55 10ms 27 Sep 2024 817th Emutis 🇱🇹 779 55 11ms 27 Oct 2024 821st KasperKivimaeki 🇫🇮 779 147 5ms 4 Jun 2025 822nd MeWhenI 🇻🇦 778 23 39ms 25 Jul 2022 822nd AlephSquirrel 778 23 39ms 31 Dec 2022 824th DialFrost 🇸🇬 778 68 6ms 7 Dec 2024 824th pardouin 🇫🇷 778 68 5ms 20 Mar 2025 826th Shanethegamer 🇺🇸 777 59 122ms 29 Jan 2022 826th Z-snails 777 59 129ms 28 Feb 2023 828th kimbo 🇺🇸 777 151 251ms 25 Dec 2022 829th rak1507 🇬🇧 776 52 31ms 29 Jan 2022 830th jared-hughes 774 307 22ms 8 Jul 2024 831st inventshah 773 22 2ms 8 May 2022 832nd Natanaelel 🇸🇪 773 46 28ms 3 Jan 2024 833rd KatieLG 🇬🇧 773 64 1,374ms 16 Oct 2022 834th Shanethegamer 🇺🇸 771 58 13ms 29 Jan 2022 835th ovs-code 🇩🇪 771 82 122ms 14 Oct 2022 836th codingisgreatbutiamnot 769 51 9ms 25 Jul 2024 837th Yax42 🇫🇷 769 141 422ms 4 Oct 2025 838th albanian-laundromat 767 48 371ms 7 Oct 2025 839th dokutan 767 153 246ms 24 Mar 2025 840th MeWhenI 🇻🇦 765 48 329ms 15 Feb 2023 841st petroselo 765 56 9ms 12 Apr 2022 841st SB-945 765 56 9ms 10 Jul 2023 841st JunkIce 765 56 10ms 24 Nov 2024 841st kevinnaviapaiva 765 56 9ms 19 Dec 2024 841st wobblybits 765 56 10ms 19 Aug 2025 846th brimstonetrader 764 60 125ms 10 Jan 2024 846th YAJUE114514 764 60 147ms 23 Jul 2025 848th Yewzir 🇧🇪 763 102 152ms 7 May 2024 849th LeeCamp 762 27 35ms 10 Feb 2022 850th snoozingnewt 🇨🇦 762 154 257ms 29 Oct 2025 851st pardouin 🇫🇷 760 51 62ms 13 Sep 2024 852nd DialFrost 🇸🇬 757 164 123ms 15 Dec 2025 853rd SirFireball3521 754 52 9ms 3 Nov 2022 853rd albanian-laundromat 754 52 9ms 24 Nov 2025 855th namelessiw 752 49 353ms 19 Aug 2024 856th PrathamMehta08 752 57 11ms 6 Dec 2023 856th Terobero 752 57 12ms 21 Aug 2024 856th AtengChen 752 57 10ms 7 Sep 2024 856th Mick-Travis 752 57 11ms 8 Dec 2024 860th pardouin 🇫🇷 752 84 124ms 8 Mar 2025 861st MeWhenI 🇻🇦 752 156 259ms 10 Feb 2023 862nd Jeremy-Stafford 751 61 124ms 28 Feb 2023 862nd inverseLorentz 🇦🇺 751 61 124ms 23 Apr 2024 864th dokutan 750 68 3ms 22 days ago 865th dokutan 750 83 455ms 22 Sep 2025 866th pardouin 🇫🇷 749 68 6ms 26 Apr 2025 867th MeWhenI 🇻🇦 749 219 110ms 16 Aug 2024 868th dokutan 748 41 44ms 18 Mar 2025 869th Alex-x90 🇺🇸 747 147 498ms 6 May 2024 870th ovs-code 🇩🇪 746 161 135ms 21 Apr 2025 871st snoozingnewt 🇨🇦 745 47 701ms 21 Nov 2025 872nd MeWhenI 🇻🇦 745 60 11ms 29 Jan 2022 873rd Shanethegamer 🇺🇸 744 85 114ms 14 Oct 2022 873rd edsrzf 🇳🇿 744 85 126ms 30 Apr 2025 875th Steffan153 🇫🇮 742 68 40ms 29 Aug 2024 876th snoozingnewt 🇨🇦 741 48 27ms 3 Dec 2025 877th nipzu 741 162 132ms 2 Apr 2024 878th jbjd 739 58 10ms 25 Feb 2024 879th dokutan 739 67 1,261ms 18 Mar 2025 880th Steffan153 🇫🇮 738 29 110ms 14 Nov 2022 First Prev 801–880 of 1,991 Next Last