12 Days of Christmas
136
99 Bottles of Beer
388
Arabic to Roman
965
Christmas Trees
150
Cubes
68
Diamonds
84
Divisors
624
Emirp Numbers
542
Evil Numbers
800
Fibonacci
804
Fizz Buzz
880
Fractions
723
Leap Years
653
710
Odious Numbers
799
Pernicious Numbers
729
Quine
945
605
Sierpiński Triangle
134
Spelling Numbers
980
Tongue-twisters
735
λ
340