The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Recamán 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 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 Calendar 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 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 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 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 Calendar 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 474th levavft 841 64 10ms 26 Oct 2023 474th firegene 🇮🇪 841 64 16ms 24 Dec 2023 474th JunkIce 841 64 17ms 3 Dec 2024 474th plcc0 841 64 17ms 21 Apr 2025 474th dokutan 841 64 16ms 15 Jun 2025 486th stefangimmillaro 839 52 1,027ms 6 May 2023 487th GrayJoKing 🇦🇺 839 61 367ms 16 Jan 2024 487th sisyphus-ppcg 🇦🇺 839 61 365ms 16 Jan 2024 487th m-tkach 🇺🇦 839 61 362ms 20 Jan 2024 487th CaedenHarper 🇨🇦 839 61 397ms 7 Feb 2025 491st Yewzir 🇧🇪 838 68 2ms 14 Oct 2023 492nd DialFrost 🇸🇬 838 82 119ms 8 Aug 2024 493rd Maznek 837 59 9ms 27 Dec 2023 494th sean-niemann 🇺🇸 835 75 2ms 18 Jan 2025 495th DialFrost 🇸🇬 834 49 3ms 30 Oct 2024 496th MeWhenI 🇻🇦 833 74 2ms 31 Dec 2022 497th bbakersmith 831 82 50ms 1 Aug 2021 498th argusdusty 🇺🇸 830 124 278ms 27 Dec 2020 498th Shanethegamer 🇺🇸 830 124 273ms 7 Apr 2022 500th janbehrens 🇩🇪 829 56 5ms 8 Jun 2021 501st DialFrost 🇸🇬 829 82 4,279ms 25 Oct 2024 502nd SirBogman 🇺🇸 828 49 34ms 28 Dec 2020 502nd gilufin 828 49 42ms 8 Aug 2021 502nd m-tkach 🇺🇦 828 49 39ms 14 Feb 2023 502nd olleicua 🇺🇸 828 49 34ms 20 Jan 2024 506th rowboat1 828 65 25ms 21 Jun 2022 506th jsthope 828 65 10ms 28 Sep 2022 506th QuincyNash 🇺🇸 828 65 10ms 29 Nov 2022 506th Yewzir 🇧🇪 828 65 26ms 14 Apr 2023 506th ryyyn 🇺🇸 828 65 29ms 3 days ago 511th DialFrost 🇸🇬 828 81 40ms 20 Dec 2024 512th sean-niemann 🇺🇸 827 54 738ms 12 days ago 513th DialFrost 🇸🇬 827 95 8ms 12 Dec 2024 514th alicethecatwhisperermeow 827 99 376ms 7 Aug 2024 514th tomh1012 827 99 365ms 27 days ago 516th lynn 826 82 10ms 16 Nov 2021 517th AlephSquirrel 825 62 374ms 26 Jun 2024 517th KatieLG 🇬🇧 825 62 391ms 28 Oct 2024 519th xkacer 🇨🇿 825 77 1ms 7 Feb 2021 520th DialFrost 🇸🇬 823 53 917ms 20 Jul 2024 521st Steffan153 🇫🇮 823 59 87ms 14 Dec 2022 522nd coreynash 823 60 9ms 14 Feb 2024 522nd penbuvt 823 60 9ms 7 Nov 2024 524th Salutations45 822 53 2ms 11 Dec 2024 525th rak1507 🇬🇧 821 35 2ms 10 Jan 2022 525th SirBogman 🇺🇸 821 35 2ms 17 Nov 2023 527th tigerdan2 🇩🇪 820 105 356ms 18 days ago 528th DialFrost 🇸🇬 819 79 102ms 13 Jul 2024 529th Shanethegamer 🇺🇸 818 98 437ms 1 Mar 2022 530th Steffan153 🇫🇮 817 61 475ms 1 Jan 2023 531st kkoenig 817 126 267ms 3 Jan 2024 531st sean-niemann 🇺🇸 817 126 266ms 22 Jul 2024 531st KasperKivimaeki 🇫🇮 817 126 260ms 4 Oct 2025 534th martinnorling 🇸🇪 815 66 16ms 27 Jan 2022 534th Powerroff 815 66 10ms 5 May 2024 536th namcartoon06 814 78 2ms 30 Jun 2023 536th iczelia 🇩🇪 814 78 1ms 15 Oct 2025 538th GrayJoKing 🇦🇺 813 44 2ms 30 Apr 2021 538th o0lit3 🇺🇸 813 44 3ms 25 Jun 2021 538th perlebach 🇨🇿 813 44 2ms 19 Aug 2021 541st Shanethegamer 🇺🇸 812 50 36ms 11 May 2021 541st olivermrose 🇺🇸 812 50 34ms 21 Sep 2021 541st akshatj27 🇦🇶 812 50 47ms 11 Jan 2022 544th edsrzf 🇳🇿 812 55 721ms 2 Sep 2025 545th ovs-code 🇩🇪 812 63 453ms 15 Jan 2024 546th SirBogman 🇺🇸 810 52 245ms 26 Jan 2024 547th lynn 810 76 105ms 22 May 2021 548th jkelly467 810 84 4,198ms 26 days ago 549th Adix-null 🇱🇹 810 101 369ms 6 days ago 550th DialFrost 🇸🇬 810 105 122ms 7 Apr 2025 551st Tenclea 809 61 8ms 26 Aug 2023 551st LukeBridges 🇬🇧 809 61 8ms 28 Nov 2024 551st iczelia 🇩🇪 809 61 9ms 15 Oct 2025 554th Shanethegamer 🇺🇸 809 80 98ms 14 Oct 2022 554th MeWhenI 🇻🇦 809 80 99ms 15 Oct 2022 556th the-zammers 809 85 114ms 13 Oct 2023 556th tobeannouncd 809 85 117ms 8 Jan 2024 558th MeWhenI 🇻🇦 808 54 1,167ms 13 Nov 2022 559th MeWhenI 🇻🇦 807 54 2ms 4 Nov 2022 560th albanian-laundromat 806 73 73ms 20 Nov 2025 First Prev 481–560 of 1,987 Next Last