99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arithmetic Numbers
ASCII Table
Card Number Validation
Catalan Numbers
Christmas Trees
Collatz
Cubes
Day of Week
Diamonds
Divisors
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Gijswijt’s Sequence
Happy Numbers
Happy Numbers (Long)
Intersection
ISBN
388
Kolakoski Sequence
Leap Years
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Niven Numbers
Niven Numbers (Long)
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Prime Numbers
Prime Numbers (Long)
Quine
Recamán
Reverse Polish Notation
Rock-paper-scissors-Spock-lizard
Roman to Arabic
SI Units
Smith Numbers
Sudoku (Fill-in)
Transpose Sentence
Vampire Numbers
Van Eck Sequence
φ
√2
𝑒