12 Days of Christmas
85
99 Bottles of Beer
300
Arabic to Roman
963
Christmas Trees
149
Cubes
66
Diamonds
83
Divisors
625
Emirp Numbers
443
Evil Numbers
803
Fibonacci
805
Fizz Buzz
874
Fractions
719
Leap Years
643
710
Odious Numbers
802
Pernicious Numbers
731
Quine
947605
Sierpiński Triangle
184
Spelling Numbers
980
Tongue-twisters
479
λ
249