Fibonacci in C# in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Erlang 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 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 Erlang 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 146th acotis 864 59 464ms 11 Jan 2025 146th 123mjb 864 59 333ms 23 Jun 2025 146th ibiza240 864 59 314ms 21 Sep 2025 154th Bobini1 🇵🇱 850 60 327ms 21 Nov 2021 154th JDiLenarda 🇫🇷 850 60 327ms 21 Nov 2021 154th najs91 850 60 331ms 21 Nov 2021 154th yzhs 🇩🇪 850 60 336ms 21 Nov 2021 154th joharasmus 🇸🇪 850 60 316ms 19 Jul 2022 154th JaroPolhosDev 850 60 313ms 13 Sep 2023 154th GarethSpring 850 60 313ms 19 Sep 2023 154th mqtze 850 60 314ms 21 Sep 2023 154th puddnova 850 60 320ms 22 Oct 2024 154th michelebastione 🇮🇹 850 60 336ms 13 Aug 2025 164th PatrickKocken 836 61 311ms 21 Nov 2021 164th TeDeMos 836 61 310ms 21 Nov 2021 164th castur1 836 61 306ms 27 Jan 2022 164th centrolutions 836 61 315ms 24 Nov 2022 164th dorschmeister 836 61 335ms 19 May 2023 164th fkantelberg 836 61 310ms 15 Jul 2023 164th josephdwalker 836 61 318ms 14 Nov 2023 164th epic-programmer-guy 836 61 313ms 25 Dec 2023 164th codewrite 🇬🇧 836 61 333ms 19 Apr 2025 164th Alex-Huggett 🇬🇧 836 61 323ms 13 Sep 2025 174th jahakari 823 62 331ms 21 Nov 2021 174th MichalMarsalek 🇨🇿 823 62 337ms 29 Nov 2021 174th TheRealOhead 🇺🇸 823 62 322ms 25 Nov 2022 174th Mezzofloat 823 62 310ms 24 Aug 2023 174th nyoshe 823 62 307ms 10 Oct 2023 174th hippopotam00sehead 🇨🇦 823 62 312ms 11 Sep 2024 174th Stockoh 🇫🇷 823 62 324ms 4 Nov 2024 174th desecaw13 823 62 321ms 24 Jan 2025 182nd ILMTitan 810 63 310ms 21 Nov 2021 182nd Domicnt 810 63 318ms 1 Jan 2022 182nd CedricGebistorf 810 63 333ms 3 Feb 2022 182nd ChrisTheisen 810 63 310ms 13 Dec 2022 182nd TimJackMaster 810 63 315ms 25 Jan 2023 182nd gazle 810 63 305ms 25 Apr 2024 182nd tomh1012 810 63 327ms 5 Sep 2025 189th muztanger 797 64 309ms 21 Nov 2021 189th Xwilarg 🇫🇷 797 64 314ms 21 Nov 2021 189th Ripick 797 64 337ms 30 Apr 2023 189th usernamethatisnttaken 797 64 345ms 6 Sep 2023 189th Mikey-Beep 🇬🇧 797 64 318ms 24 Jul 2025 194th Andre3582 785 65 335ms 21 Nov 2021 194th enbyte 785 65 353ms 21 Nov 2021 194th MLPdiscord 785 65 318ms 6 Jan 2022 194th Nickmiste 785 65 307ms 13 Nov 2022 194th mqyhlkahu 785 65 309ms 10 Sep 2023 194th trinityy-7 785 65 339ms 6 Mar 2024 194th msbranicky 785 65 316ms 3 Jul 2024 201st aaronze 🇦🇺 773 66 310ms 21 Nov 2021 201st elephantpanda 773 66 305ms 26 Aug 2022 201st eshilo-draper 773 66 305ms 5 Oct 2022 201st heanyang1 773 66 324ms 22 Apr 2025 201st jacekwladzinski 773 66 331ms 2 Oct 2025 206th mickeyMouse1108 761 67 328ms 21 Nov 2021 206th aDwarfNamedUrist 761 67 309ms 21 Nov 2022 206th glatzert 761 67 330ms 12 May 2023 206th Sciman101 761 67 316ms 15 May 2023 206th eiburns 761 67 324ms 7 Sep 2023 206th rollershutter 761 67 327ms 29 Jan 2025 206th kevinnaviapaiva 761 67 316ms 19 Feb 2025 213th jcheritat 750 68 342ms 21 Nov 2021 213th PhonicCanine 750 68 310ms 21 Nov 2021 213th Gpopcorn 750 68 302ms 31 Mar 2022 213th Mortis66666 750 68 310ms 27 May 2022 213th 104210 750 68 312ms 12 Sep 2022 213th Pyro569 750 68 308ms 31 Jul 2023 219th martinnorling 🇸🇪 739 69 316ms 15 Feb 2022 219th dpethes 739 69 391ms 9 Jan 2024 219th PyryL 🇫🇮 739 69 319ms 23 Aug 2024 219th Flix7dev 🇧🇪 739 69 347ms 21 Oct 2025 223rd Skellybob56 729 70 310ms 11 days ago 224th Cbrt74088 718 71 311ms 21 Nov 2021 224th MrGraduate 718 71 314ms 21 Nov 2021 First Prev 151–225 of 320 Next Last