Fibonacci in JavaScript 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 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 Chars Time Submitted 716th 2pichar 559 59 10ms 10 Nov 2022 716th 123mjb 559 59 10ms 25 Jun 2025 723rd Moritz-Siegel 550 60 11ms 11 Jan 2018 723rd SamirHodzic 550 60 10ms 12 Oct 2018 723rd MaartenStaa 550 60 29ms 5 Jan 2020 723rd ze-h 🇺🇸 550 60 9ms 10 Jan 2022 723rd MattShaile 550 60 10ms 20 Mar 2022 723rd Cinnamonsroll 550 60 10ms 18 Oct 2022 723rd MisterrLuck 550 60 11ms 31 Jul 2024 723rd noahhorlacher 550 60 9ms 8 Dec 2024 731st rxl3 541 61 26ms 15 Mar 2018 731st wrauner 541 61 9ms 6 Aug 2019 731st PeriBooty 541 61 28ms 26 Nov 2019 731st tekaireb 541 61 20ms 24 Jul 2021 731st mackereldev 541 61 11ms 27 Apr 2022 731st Smetalo 541 61 10ms 24 Aug 2022 731st DCerane 541 61 27ms 14 Oct 2022 731st mobibluman 541 61 10ms 23 Oct 2023 739th N3phi1im 532 62 10ms 22 Nov 2018 739th janga1 532 62 9ms 19 Aug 2021 739th charlieharutaka 532 62 10ms 28 Sep 2021 739th Gpopcorn 532 62 10ms 29 Mar 2022 739th programmeruser2 532 62 10ms 3 Mar 2023 739th ANovelForStudy 532 62 10ms 9 Jun 2023 739th deniz-blue 532 62 10ms 19 Oct 2023 739th TotoAJ 532 62 10ms 12 Dec 2023 747th ahmedzafar89 524 63 9ms 13 Sep 2018 747th McErer 524 63 10ms 11 Jan 2019 747th blucky36 524 63 27ms 27 Feb 2019 747th Jdender 524 63 39ms 21 Aug 2019 747th DaCoolOne 524 63 10ms 24 Nov 2019 747th grenierdev 524 63 10ms 3 Dec 2019 747th saschakaupp 524 63 9ms 5 Dec 2019 747th Randomness74 524 63 10ms 14 Mar 2020 747th heigertd 524 63 12ms 26 May 2020 747th Fulkman 524 63 11ms 19 Sep 2020 747th Fanrco 524 63 11ms 31 Aug 2023 747th null-tangent 524 63 25ms 3 Apr 2025 759th DmyBor 516 64 9ms 4 May 2018 759th ollybrabs 516 64 20ms 22 Aug 2018 759th Kingohearts 516 64 11ms 22 Sep 2018 759th sammylou852 516 64 9ms 30 Nov 2018 759th jonot-cyber 516 64 10ms 16 Jun 2019 759th Pablo-No 516 64 11ms 15 Jul 2020 759th richard-oelze 🇩🇪 516 64 10ms 6 Nov 2020 759th WilliamKeating 516 64 9ms 14 Jan 2022 759th OfficialCB 516 64 12ms 11 Dec 2023 759th Mikey-Beep 🇬🇧 516 64 9ms 25 Dec 2024 769th varbrad 508 65 10ms 5 Dec 2017 769th masashimachida 508 65 10ms 27 Jul 2020 769th kozgera 508 65 10ms 9 Apr 2021 769th kellyGipson 508 65 11ms 2 Jun 2021 769th Ivraj 508 65 27ms 11 Dec 2022 769th osNiko 🇧🇷 508 65 10ms 16 days ago 775th Draegert 500 66 21ms 4 Jun 2019 775th con-cs 500 66 11ms 26 Oct 2021 775th RegularSalamander 500 66 37ms 29 Jan 2022 775th Zylar-xD 500 66 10ms 1 Apr 2022 775th Lxkasmehl 500 66 10ms 17 Jul 2025 775th Xanderium 500 66 9ms 29 Aug 2025 781st labster 493 67 21ms 5 Mar 2018 781st aberthier 493 67 28ms 6 Mar 2018 781st GustavSt 493 67 12ms 4 Mar 2020 781st mattduag 493 67 10ms 20 Dec 2022 781st henrygagnier 493 67 9ms 19 Nov 2024 786th ChuaJ 485 68 9ms 25 Apr 2019 786th EfiGordon 485 68 10ms 24 Jul 2020 786th aphrim 🇺🇸 485 68 10ms 30 Oct 2021 786th pfysches-boop 485 68 10ms 6 Aug 2023 790th cooldreamer 478 69 11ms 20 Aug 2019 790th gabsumm 478 69 10ms 12 Jan 2022 792nd everchanger 471 70 10ms 6 Jun 2020 792nd tik25 471 70 10ms 28 Mar 2024 794th abishek28007 465 71 10ms 7 Sep 2020 794th k4rli 465 71 10ms 20 Jan 2021 794th jessegyger 465 71 11ms 7 Nov 2022 794th Pyro569 465 71 10ms 30 Jul 2023 794th apokryfos 465 71 25ms 18 Aug 2023 799th rishavb123 458 72 9ms 19 Jul 2018 799th DaleNaci 458 72 12ms 19 Jul 2018 First Prev 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