Van Eck Sequence in Python 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 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 Rectangle Fill 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 160th fredrik-bakke 🇳🇴 726 73 38ms 2 Oct 2022 160th fourth-bit 726 73 50ms 5 Dec 2022 160th CatsAreFluffy 726 73 22ms 17 Dec 2022 160th jmerle 🇳🇱 726 73 70ms 16 Feb 2023 160th AlexanderFair 726 73 47ms 2 Jul 2023 160th NickTheEASDude 🇺🇸 726 73 46ms 6 Aug 2024 160th AtengChen 726 73 11ms 27 Aug 2024 160th andrewjc2000 726 73 50ms 18 Jul 2025 160th madeforlosers 726 73 11ms 13 Nov 2025 170th adoxography 716 74 49ms 20 Aug 2021 170th m42km 716 74 11ms 25 Nov 2023 170th Stockoh 🇫🇷 716 74 44ms 23 Jun 2024 170th TheZwierzLF 🇵🇱 716 74 11ms 24 May 2025 174th potato-jackson 707 75 12ms 10 Sep 2021 174th osmith93 707 75 21ms 14 Jun 2022 174th aksyristos 707 75 46ms 18 Jan 2023 174th celiendonze 🇨🇭 707 75 12ms 11 Apr 2023 174th programjames 707 75 41ms 3 Feb 2024 174th bob-th 707 75 18ms 26 Jul 2024 174th fkantelberg 707 75 41ms 22 Jul 2025 181st kyleclaassen 697 76 22ms 9 Feb 2022 181st za3k 697 76 17ms 16 Oct 2022 181st cros107 🇦🇺 697 76 45ms 6 Aug 2023 184th LeeCamp 688 77 25ms 23 Dec 2021 184th codewrite 🇬🇧 688 77 11ms 9 Jul 2025 186th Indivicivet 679 78 58ms 26 Oct 2021 186th SirFireball3521 679 78 17ms 14 Mar 2023 188th pascscha 671 79 18ms 28 Mar 2022 188th zgialor-lab 671 79 16ms 6 days ago 190th jacklynnepenick 663 80 48ms 26 Aug 2021 190th b10011 🇫🇮 663 80 25ms 8 Jan 2023 190th keelimeguy 🇺🇸 663 80 2,062ms 19 Dec 2023 193rd michelebastione 🇮🇹 654 81 23ms 26 May 2021 193rd petroselo 654 81 39ms 12 Apr 2022 193rd jhpaques 🇫🇷 654 81 58ms 29 Jul 2022 193rd bwenstar 654 81 19ms 12 Aug 2022 193rd glesnick 654 81 43ms 30 Sep 2022 193rd eshilo-draper 654 81 12ms 27 Oct 2022 193rd nstearns96 🇬🇧 654 81 57ms 29 Nov 2022 193rd cingulataluke 654 81 14ms 29 Aug 2023 193rd estomagordo 🇳🇱 654 81 11ms 31 Aug 2023 193rd Ythaenagor 654 81 11ms 5 Aug 2024 203rd RustemB 🇷🇺 646 82 14ms 2 May 2021 203rd Mikey-Beep 🇬🇧 646 82 15ms 5 Sep 2024 203rd moustave 646 82 61ms 28 Nov 2024 203rd klixel 🇨🇦 646 82 35ms 25 Jan 2025 203rd AstroOrbis 646 82 11ms 25 Nov 2025 208th trist224 🇫🇷 639 83 39ms 1 Sep 2022 209th ValdeQwerty 631 84 48ms 22 Sep 2021 209th PhysicDev 🇫🇷 631 84 26ms 13 Nov 2021 209th fgrosshans 🇫🇷 631 84 56ms 25 Jan 2022 209th amollberg 🇸🇪 631 84 16ms 30 Jan 2022 209th argusdusty 🇺🇸 631 84 57ms 21 Aug 2022 209th rollershutter 631 84 22ms 14 Nov 2023 209th Mabeloid 🇳🇴 631 84 14ms 6 Oct 2024 209th 5quiwyrm 631 84 58ms 7 Dec 2024 209th Alex-Huggett 🇬🇧 631 84 45ms 13 Sep 2025 218th Bonjour27891 🇻🇳 624 85 46ms 30 Jan 2022 219th hymanimy 616 86 55ms 24 Aug 2021 219th Azearia 616 86 12ms 23 Oct 2023 219th Techdude01 616 86 14ms 21 Dec 2023 219th yuchuehw 616 86 15ms 4 Feb 2024 219th LostSyntax21 🇬🇧 616 86 15ms 30 Nov 2025 224th MichalMarsalek 🇨🇿 609 87 17ms 3 Dec 2021 224th willschremmer 609 87 21ms 4 Apr 2024 226th befoster 602 88 24ms 8 May 2021 226th mrmena 🇦🇺 602 88 57ms 6 Jul 2021 226th martinnorling 🇸🇪 602 88 17ms 10 Feb 2022 226th abba23 602 88 15ms 27 May 2022 226th bbakersmith 602 88 15ms 28 Jun 2022 226th santiagvalencia 602 88 23ms 6 Mar 2025 232nd bastienvoirin 🇫🇷 596 89 16ms 14 Sep 2021 232nd Troon 596 89 58ms 18 Oct 2022 232nd PaulMWeiser 596 89 16ms 5 Mar 2023 232nd aalec 596 89 21ms 25 Apr 2024 232nd ComputerKWasTaken 🇺🇸 596 89 12ms 23 Jan 2025 232nd ImpressedByRocks 596 89 53ms 13 Feb 2025 232nd smilesformiles3 596 89 60ms 24 Sep 2025 239th AkashTandon167 589 90 14ms 1 Nov 2021 239th jfallon1997 589 90 15ms 9 Aug 2022 First Prev 161–240 of 338 Next Last