Collatz in Python 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 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 Apéry’s Constant Binary Lambda Calculus 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 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 ArkScript 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 ArkScript 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 Calendar 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 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 Apéry’s Constant Binary Lambda Calculus 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 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 202nd ejini6969 851 74 19ms 22 Mar 2023 202nd GulgDev 851 74 18ms 22 Mar 2023 202nd vrnprkh 851 74 19ms 30 Mar 2023 202nd RuyiLi 851 74 18ms 1 Apr 2023 202nd StardustGogeta 851 74 18ms 7 May 2023 202nd zbreit 🇺🇸 851 74 19ms 7 May 2023 202nd kyleclaassen 851 74 19ms 20 May 2023 202nd mbittner20 851 74 19ms 27 May 2023 202nd tweska 🇳🇱 851 74 18ms 5 Jun 2023 202nd rollershutter 851 74 19ms 7 Jul 2023 202nd 2011-Chan-Ethan 851 74 19ms 9 Jul 2023 202nd cros107 🇦🇺 851 74 18ms 11 Aug 2023 202nd yourlefthandman 851 74 18ms 16 Aug 2023 202nd daisyyedda 851 74 21ms 17 Aug 2023 202nd cesarm4 851 74 18ms 29 Aug 2023 202nd midnattssol 🇸🇪 851 74 18ms 22 Sep 2023 202nd lambda-abstraction 851 74 20ms 21 Oct 2023 202nd levavft 851 74 18ms 26 Oct 2023 202nd Buecherfresser 851 74 19ms 22 Nov 2023 202nd anarconic 851 74 51ms 8 Dec 2023 202nd azure-blondon 851 74 18ms 11 Dec 2023 202nd kurkale6ka 851 74 20ms 20 Dec 2023 202nd Dataen 851 74 19ms 10 Jan 2024 202nd Anonymousellama21 851 74 20ms 14 Mar 2024 202nd Bmrl7 851 74 19ms 23 Mar 2024 202nd cefqrn 851 74 19ms 26 May 2024 202nd drochom 851 74 18ms 18 Jun 2024 202nd hiichbindermax 851 74 18ms 22 Jun 2024 202nd wuzekai518 851 74 23ms 9 Jul 2024 202nd madex 🇩🇪 851 74 18ms 9 Jul 2024 202nd cykim8811 851 74 46ms 11 Jul 2024 202nd imelxr 🇮🇱 851 74 30ms 17 Aug 2024 202nd EnTerr 851 74 21ms 25 Aug 2024 202nd Mabeloid 🇳🇴 851 74 18ms 1 Sep 2024 202nd madeforlosers 851 74 19ms 5 Sep 2024 202nd LostSyntax21 🇬🇧 851 74 20ms 10 Sep 2024 202nd Deedogg 851 74 19ms 11 Sep 2024 202nd MassimoParisi 851 74 18ms 18 Sep 2024 202nd lifthrasiir 🇰🇷 851 74 18ms 13 Nov 2024 202nd agreegious 851 74 20ms 17 Nov 2024 202nd Stockoh 🇫🇷 851 74 24ms 17 Nov 2024 202nd Andrey135296 851 74 20ms 24 Nov 2024 202nd TralfamadorianComedian 851 74 18ms 6 Dec 2024 202nd bltnppcnt 851 74 32ms 3 Jan 2025 202nd ZorblaxV 851 74 18ms 12 Jan 2025 202nd yokasuretsu 851 74 19ms 13 Jan 2025 202nd Artemis21 🇬🇧 851 74 19ms 17 Jan 2025 202nd gdpr777 851 74 31ms 10 Feb 2025 202nd Pyroan 851 74 20ms 27 Mar 2025 202nd Squimbletin 851 74 22ms 19 Apr 2025 202nd Kowalskiexe 🇵🇱 851 74 18ms 19 Apr 2025 202nd Dandandooo 851 74 21ms 23 Apr 2025 202nd khangtm123 851 74 18ms 4 May 2025 202nd 40fied4t 851 74 19ms 6 May 2025 202nd keelimeguy 🇺🇸 851 74 21ms 13 May 2025 202nd TheZwierzLF 🇵🇱 851 74 20ms 21 May 2025 202nd kbeat 🇰🇿 851 74 19ms 21 May 2025 202nd LvLError 851 74 19ms 29 May 2025 202nd ffelixm 851 74 19ms 3 Jun 2025 202nd Flekay 🇩🇪 851 74 19ms 19 Jun 2025 202nd DoubleUynn 851 74 19ms 25 Jun 2025 202nd osNiko 🇧🇷 851 74 20ms 26 Jul 2025 202nd wobblybits 851 74 19ms 13 Aug 2025 202nd denisfouchard 851 74 18ms 23 Aug 2025 202nd Emutis 🇱🇹 851 74 19ms 23 Aug 2025 202nd edsrzf 🇳🇿 851 74 18ms 10 Sep 2025 202nd Matter1024 🇮🇳 851 74 18ms 11 Sep 2025 202nd pauljoohyunkim 851 74 19ms 25 Sep 2025 202nd joll05 🇸🇪 851 74 23ms 1 Oct 2025 202nd retrohun 851 74 20ms 3 Oct 2025 202nd solisolu 851 74 20ms 4 Oct 2025 202nd Code-Coder-coder 851 74 19ms 12 Oct 2025 202nd fvla 851 74 24ms 31 Oct 2025 202nd zgialor-lab 851 74 23ms 17 Dec 2025 202nd 77Tigers 851 74 20ms 24 days ago 202nd netfri25 851 74 19ms 2 days ago 317th martinnorling 🇸🇪 840 75 22ms 5 May 2022 317th Trunksistor 🇫🇷 840 75 23ms 9 May 2022 317th bbakersmith 840 75 23ms 28 Jun 2022 317th bsoyka 🇺🇸 840 75 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