12 Days of Christmas
40699 Bottles of Beer
404Arabic to Roman
444Christmas Trees
647Diamonds
471Divisors
871Emirp Numbers
505Evil Numbers
816Fibonacci
947Fizz Buzz
869Happy Numbers
511Leap Years
672Morse Decoder
283Morse Encoder
314Niven Numbers
815Odious Numbers
800Pangram Grep
763Pascal’s Triangle
806Pernicious Numbers
714Prime Numbers
667Roman to Arabic
465Rule 110
399Seven Segment
466Sierpiński Triangle
628π
57τ
57φ
51𝑒
47