12 Days of Christmas
86
99 Bottles of Beer
297
Arabic to Roman
955
Christmas Trees
122
Cubes
56
Diamonds
69
Divisors
613
Emirp Numbers
439
Evil Numbers
802
Fibonacci
801
Fizz Buzz
869
Fractions
704
Leap Years
627
Odious Numbers
796
Pernicious Numbers
721
Quine
943605
Sierpiński Triangle
173
Spelling Numbers
980
Tongue-twisters
469
λ
242