12 Days of Christmas
135
99 Bottles of Beer
387
Arabic to Roman
965
Christmas Trees
129
Cubes
47
Diamonds
84
Divisors
625
Emirp Numbers
544
Evil Numbers
804
Fibonacci
806
Fizz Buzz
880
Fractions
702
Leap Years
644
712
Odious Numbers
803
Pernicious Numbers
731
Quine
947605
Sierpiński Triangle
134
Spelling Numbers
980
Tongue-twisters
680
λ
329