12 Days of Christmas
85
99 Bottles of Beer
300
Arabic to Roman
963
Christmas Trees
127
Cubes
59
Diamonds
83
Divisors
625
Emirp Numbers
443
Evil Numbers
804
Fibonacci
806
Fizz Buzz
874
Fractions
702
Leap Years
643
711
Odious Numbers
803
Pernicious Numbers
731
Quine
947605
Sierpiński Triangle
184
Spelling Numbers
980
Tongue-twisters
468
λ
249