12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
brainfuck
Card Number Validation
Catalan Numbers
1st
Catalan’s Constant
Christmas Trees
Collatz
CSS Colors
Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
Emirp Numbers
4th
3rd
Emirp Numbers (Long)
Emojify
Evil Numbers
6th
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
1st
💎
1st
3rd
12th
Fizz Buzz
6th
1st
1st
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
Happy Numbers
9th
1st
Happy Numbers (Long)
Hexdump
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Maze
Medal Tally
Morse Decoder
Morse Encoder
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
6th
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Prime Numbers
Prime Numbers (Long)
Proximity Grid
Quine
1st
1st
1st
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
Roman to Arabic
Rule 110
Seven Segment
SI Units
Sierpiński Triangle
Spelling Numbers
Sudoku
Sudoku (Fill-in)
Time Distance
Tongue-twisters
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
💎
π
τ
φ
√2
𝑒