12 Days of Christmas
135
99 Bottles of Beer
388
Arabic to Roman
965
Christmas Trees
150
Cubes
68
Diamonds
84
Divisors
624
Emirp Numbers
543
Evil Numbers
802
Fibonacci
805
Fizz Buzz
880
Fractions
725
Leap Years
644
710
Odious Numbers
801
Pernicious Numbers
730
Quine
946605
Sierpiński Triangle
134
Spelling Numbers
980
Tongue-twisters
734
λ
338