Fibonacci in C# 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 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 Dragon Curve 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 Dragon Curve 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 Bytes Time Submitted 44th Soyo-Wind 981 52 462ms 3 Nov 2025 44th solisolu 981 52 423ms 21 Nov 2025 44th Andrey2001 981 52 488ms 24 Nov 2025 44th KasperKivimaeki 🇫🇮 981 52 390ms 26 Nov 2025 44th Pyroan 981 52 456ms 17 Dec 2025 44th FlyingPenguin223 981 52 421ms 20 Jan 2026 87th bac0id 962 53 363ms 21 Nov 2021 87th daniel-skalik 🇨🇿 962 53 386ms 21 Nov 2021 87th jmhowl 962 53 363ms 21 Nov 2021 87th pallbo 962 53 383ms 21 Nov 2021 87th revlayle 🇺🇸 962 53 389ms 21 Nov 2021 87th ScottHamper 962 53 400ms 21 Nov 2021 87th theentropic 962 53 381ms 21 Nov 2021 87th KrausRaus 🇺🇸 962 53 387ms 15 Dec 2021 87th Re-Adventures 🇮🇳 962 53 373ms 15 Feb 2022 87th hemphen 962 53 412ms 30 Aug 2022 87th jhpaques 🇫🇷 962 53 358ms 3 Dec 2022 87th annaproxy 962 53 426ms 22 Jan 2023 87th nesrak1 962 53 449ms 12 Oct 2024 87th plcc0 962 53 433ms 28 Mar 2025 87th gigaprofisi 🇺🇸 962 53 447ms 15 Nov 2025 87th dokutan 962 53 406ms 18 Nov 2025 87th matanberstadt 962 53 409ms 10 days ago 104th AdrialaD 944 54 402ms 21 Nov 2021 104th aliakseikalosha 944 54 430ms 21 Nov 2021 104th cros107 🇦🇺 944 54 379ms 21 Nov 2021 104th iznax 944 54 390ms 21 Nov 2021 104th simon-biber 944 54 404ms 5 Feb 2022 104th arctouch-sergeymetlov 944 54 379ms 30 Jan 2023 104th arctouch-cristiannevianna 944 54 371ms 30 Jan 2023 104th Adix-null 🇱🇹 944 54 392ms 4 Jul 2023 104th BREMAUCY 🇫🇷 944 54 377ms 18 Jul 2023 104th mathisfun271 944 54 380ms 21 Feb 2024 104th HumanoidCPU 944 54 364ms 16 Mar 2024 104th andrewjc2000 944 54 415ms 7 Mar 2025 104th Theremon72 944 54 403ms 12 Mar 2025 104th matejmatik123 🇸🇰 944 54 393ms 12 Aug 2025 104th kasarino 944 54 427ms 17 Mar 2026 119th Hankinabag 927 55 380ms 21 Nov 2021 119th Jeffreyvde 927 55 420ms 21 Nov 2021 119th Rens-br 927 55 389ms 21 Nov 2021 119th fredrik-bakke 🇳🇴 927 55 393ms 27 Mar 2022 119th Matgc04 927 55 374ms 31 May 2023 119th ComradeSquirrel 927 55 391ms 39 hours ago 125th joelgduggan 911 56 383ms 21 Nov 2021 125th marcin7Cd 911 56 362ms 21 Nov 2021 125th pan4ever 911 56 366ms 21 Nov 2021 125th MichaelMBradley 🇨🇦 911 56 404ms 21 Mar 2022 125th hamhub7 911 56 373ms 5 Aug 2022 125th madeforlosers 911 56 379ms 22 Nov 2024 125th SwordF-Official 🇺🇸 911 56 401ms 12 Apr 2025 125th blaztoma 🇱🇹 911 56 406ms 17 Aug 2025 133rd Rhexis 895 57 400ms 21 Nov 2021 133rd roavin 895 57 359ms 24 Jun 2022 133rd Seanharrs 🇦🇺 895 57 391ms 25 Aug 2022 133rd Tavress 895 57 403ms 11 May 2023 133rd postie77 895 57 376ms 19 May 2023 133rd RandGuy 895 57 371ms 25 Jan 2024 133rd ashtraypettingzoo 🇺🇸 895 57 393ms 19 Mar 2024 133rd ertz1ertz 895 57 368ms 12 Jul 2024 133rd gblikas 895 57 380ms 17 Aug 2024 133rd arcpolaris 895 57 430ms 12 Dec 2024 133rd CheeseCake628 🇳🇴 895 57 416ms 17 Jul 2025 133rd Emutis 🇱🇹 895 57 431ms 16 Aug 2025 133rd amazingalek 🇳🇴 895 57 451ms 20 Dec 2025 146th AndrewSalls 879 58 371ms 21 Nov 2021 146th aplato 879 58 422ms 21 Nov 2021 146th stdstijn 879 58 369ms 21 Nov 2021 146th magnusbakken 879 58 355ms 6 Dec 2021 146th p-vf 🇨🇭 879 58 365ms 16 Jul 2022 146th neel11235813 879 58 396ms 26 Mar 2024 146th Just4FunCoder 879 58 417ms 26 Aug 2024 146th WalrusesAreAwesome 879 58 428ms 25 Mar 2025 154th kebal2 864 59 354ms 21 Nov 2021 154th tdkkdt 🇷🇺 864 59 392ms 21 Nov 2021 154th arctouch-andresato 864 59 410ms 11 Nov 2022 154th maki-chan 864 59 381ms 9 Jun 2023 154th LS2021 864 59 364ms 23 Nov 2023 154th acotis 864 59 387ms 11 Jan 2025 154th 123mjb 864 59 391ms 23 Jun 2025 First Prev 81–160 of 335 Next Last