12 Days of Christmas
136
99 Bottles of Beer
401
Arabic to Roman
980
Christmas Trees
165
Cubes
85
Diamonds
94
Divisors
677
Emirp Numbers
595
Evil Numbers
873
Fibonacci
857
Fizz Buzz
917
Fractions
844
Leap Years
706
787Odious Numbers
870
Pernicious Numbers
794
Quine
1,000
620
Sierpiński Triangle
149
Spelling Numbers
980
Tongue-twisters
773
λ
361