12 Days of Christmas
135
99 Bottles of Beer
382
Arabic to Roman
965
Christmas Trees
125
Cubes
47
Diamonds
80
Divisors
626
Emirp Numbers
544
Evil Numbers
805
Fibonacci
807
Fizz Buzz
881
Fractions
703
Leap Years
634
Odious Numbers
804
Pernicious Numbers
731
Quine
948606
Sierpiński Triangle
134
Spelling Numbers
980
Tongue-twisters
658
λ
309