12 Days of Christmas
88
99 Bottles of Beer
319
Arabic to Roman
980
Christmas Trees
139
Cubes
65
Diamonds
93
Divisors
677
Emirp Numbers
481
Evil Numbers
873
Fibonacci
857
Fizz Buzz
917
Fractions
789
Leap Years
694
787
Odious Numbers
870
Pernicious Numbers
794
Quine
1,000620
Sierpiński Triangle
200
Spelling Numbers
980
Tongue-twisters
496
λ
266