12 Days of Christmas
135
99 Bottles of Beer
389
Arabic to Roman
965
Christmas Trees
150
Cubes
69
Diamonds
84
Divisors
625
Emirp Numbers
543
Evil Numbers
803
Fibonacci
805
Fizz Buzz
880
Fractions
719
Leap Years
644
710
Odious Numbers
802
Pernicious Numbers
731
Quine
946605
Sierpiński Triangle
134
Spelling Numbers
980
Tongue-twisters
736
λ
336