12 Days of Christmas
393
99 Bottles of Beer
526
Abundant Numbers
628
brainfuck
432
Christmas Trees
406
CSS Colors
65
Cubes
407
Diamonds
406
Divisors
578
Emirp Numbers
322
Evil Numbers
487
Fibonacci
560766
Fizz Buzz
828
Happy Numbers
345
Leap Years
761
Niven Numbers
767
Odious Numbers
529
Pernicious Numbers
347
Prime Numbers
533
π
431