12 Days of Christmas
407
99 Bottles of Beer
525
Abundant Numbers
633
brainfuck
431
Christmas Trees
409
CSS Colors
65
Cubes
409
Diamonds
411
Divisors
585
Emirp Numbers
326
Evil Numbers
489
Fibonacci
562769
Fizz Buzz
831
Happy Numbers
349
Leap Years
765
Niven Numbers
776
Odious Numbers
532
Pernicious Numbers
350
Prime Numbers
535
π
436