12 Days of Christmas
Abundant Numbers
Abundant Numbers (Long)
Arithmetic Numbers
Ascending Primes
ASCII Table
brainfuck
Card Number Validation
Catalan Numbers
Christmas Trees
Collatz
Day of Week
Divisors
23rd11th86th781st
Emirp Numbers
Emirp Numbers (Long)
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
209th1st1st
Fizz Buzz
150th47th
Foo Fizz Buzz Bar
Fractions
Game of Life
Gijswijt’s Sequence
Happy Numbers
Happy Numbers (Long)
Inventory Sequence
ISBN
Kaprekar Numbers
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
N Queens
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Polyominoes
Prime Numbers
Prime Numbers (Long)
Proximity Grid
Quine
Recamán
Repeating Decimals
6th3rd
Reverse Polish Notation
Roman to Arabic
ROT13
Seven Segment
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation