The Calendar hole will go live in approximately 6 days. Why not try and solve it ahead of time?
Recamán 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 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 Bytes Time Submitted 400th duckyluuk 🇳🇱 872 62 403ms 28 Mar 2024 400th AlephSquirrel 872 62 374ms 26 Jun 2024 400th MeWhenI 🇻🇦 872 62 386ms 13 Jul 2024 400th CornerMercury 🇬🇧 872 62 376ms 12 Oct 2025 405th ovs-code 🇩🇪 872 78 10ms 1 Jul 2024 406th namelessiw 872 99 383ms 15 Nov 2025 407th jared-hughes 871 71 2ms 16 Feb 2022 407th Shanethegamer 🇺🇸 871 71 1ms 14 Nov 2022 407th GoateSo 871 71 2ms 26 Jul 2023 410th lifthrasiir 🇰🇷 871 179 10ms 17 Dec 2024 411th mousetail 🇳🇱 870 98 121ms 13 Sep 2024 412th ovs-code 🇩🇪 868 47 38ms 24 Jun 2024 412th Andriamanitra 🇫🇮 868 47 38ms 28 Feb 2025 414th BBoehm 🇩🇪 868 57 8ms 28 Dec 2020 414th neihousaigaai 868 57 8ms 19 Mar 2021 414th Shanethegamer 🇺🇸 868 57 8ms 22 Apr 2023 414th biocommando 🇫🇮 868 57 9ms 12 Aug 2023 414th olleicua 🇺🇸 868 57 8ms 20 Jan 2024 414th helbling 🇨🇭 868 57 9ms 19 Jul 2024 420th Shanethegamer 🇺🇸 868 96 1,319ms 17 Mar 2023 421st JayXon 🇺🇸 868 157 1,615ms 15 Sep 2025 422nd Shanethegamer 🇺🇸 866 77 88ms 12 May 2021 422nd sean-niemann 🇺🇸 866 77 88ms 30 Dec 2024 424th DialFrost 🇸🇬 866 101 93ms 25 days ago 425th sean-niemann 🇺🇸 864 54 6ms 23 Dec 2023 425th targrik 864 54 6ms 24 Jan 2025 427th abailey2020 🇺🇸 864 69 10ms 27 Dec 2020 427th argusdusty 🇺🇸 864 69 10ms 27 Dec 2020 427th TFeld00 🇩🇰 864 69 17ms 3 Jan 2021 427th hiddicop 🇸🇪 864 69 18ms 23 Jan 2021 427th HETHAT 🇩🇿 864 69 10ms 20 Mar 2021 427th Shanethegamer 🇺🇸 864 69 9ms 11 May 2021 427th osmith93 864 69 10ms 14 Jun 2021 427th jared-hughes 864 69 10ms 31 Oct 2021 427th OllieBoyne 🇬🇧 864 69 10ms 26 Aug 2022 427th pascscha 864 69 10ms 18 Sep 2022 427th randolchance 864 69 11ms 11 Jan 2023 427th yzhs 🇩🇪 864 69 16ms 23 Jun 2023 427th 2011-Chan-Ethan 864 69 10ms 19 Jul 2023 427th taesungh 864 69 10ms 17 Oct 2023 427th Bmrl7 864 69 10ms 14 Feb 2024 427th inverseLorentz 🇦🇺 864 69 11ms 21 Feb 2024 427th aiarzhantsev 864 69 11ms 6 Apr 2024 427th HumanoidCPU 864 69 9ms 17 Jun 2024 427th bzijlema 🇳🇱 864 69 16ms 27 May 2025 446th billings7 🇬🇧 864 95 318ms 21 Nov 2021 447th sean-niemann 🇺🇸 863 78 38ms 24 Jan 2025 448th ovs-code 🇩🇪 863 161 465ms 27 Mar 2025 449th annaproxy 862 80 121ms 4 Sep 2022 449th Natanaelel 🇸🇪 862 80 135ms 12 Feb 2025 451st andersk 🇺🇸 862 99 125ms 8 Nov 2022 452nd djeedjay 🇳🇱 861 75 2ms 5 Sep 2021 452nd SirBogman 🇺🇸 861 75 2ms 14 Dec 2021 452nd Bmrl7 861 75 2ms 8 Mar 2024 455th primo-ppcg 🇹🇭 860 51 1,021ms 23 Mar 2021 456th Ripick 860 75 120ms 3 Feb 2023 457th annaproxy 860 79 10ms 22 Sep 2023 458th dbut2 🇦🇺 860 120 273ms 16 Jul 2025 458th edsrzf 🇳🇿 860 120 254ms 2 Sep 2025 460th RockOfStone 859 72 1ms 5 Nov 2021 460th mtirado1 859 72 2ms 25 Dec 2022 460th regr4 859 72 1ms 13 Nov 2023 463rd ovs-code 🇩🇪 858 63 453ms 15 Jan 2024 463rd rucin93 🇵🇱 858 63 418ms 11 Mar 2025 463rd emgordon154 858 63 371ms 12 Apr 2025 466th dvargas46 🇺🇸 857 48 4ms 20 Jun 2022 467th omurakazuaki 🇯🇵 854 58 8ms 25 Feb 2021 467th Andrey-Plotnikov 854 58 9ms 6 Nov 2024 467th Salutations45 854 58 8ms 11 Dec 2024 470th primo-ppcg 🇹🇭 854 69 4ms 16 Aug 2023 470th Steffan153 🇫🇮 854 69 4ms 20 Aug 2023 472nd Shanethegamer 🇺🇸 854 80 3,431ms 28 Oct 2024 472nd JayXon 🇺🇸 854 80 3,246ms 12 Nov 2024 474th bstrat 853 34 2ms 28 Aug 2024 474th MeWhenI 🇻🇦 853 34 53ms 30 Jul 2025 476th DialFrost 🇸🇬 853 121 256ms 20 Dec 2024 477th prplz 🇦🇺 852 70 9ms 27 Dec 2020 477th marcin7Cd 852 70 10ms 1 Jan 2021 477th anter69 🇭🇺 852 70 18ms 20 Feb 2021 477th stordev 852 70 17ms 26 Feb 2021 First Prev 401–480 of 2,005 Next Last