12 Days of Christmas
406
99 Bottles of Beer
525
Abundant Numbers
628
brainfuck
429
Christmas Trees
408
CSS Colors
65
Cubes
517
Diamonds
407
Divisors
584
Emirp Numbers
324
Evil Numbers
487
Fibonacci
561768
Fizz Buzz
831
Happy Numbers
347
Leap Years
791
Niven Numbers
773
Odious Numbers
530
Pernicious Numbers
348
Prime Numbers
533
π
435