12 Days of Christmas
66999 Bottles of Beer
626Abundant Numbers
662
800Christmas Trees
654
723Cubes
383Diamonds
166Divisors
919Emirp Numbers
370Evil Numbers
606Fibonacci
679Fizz Buzz
398
437
423
596
571
951Leap Years
614Morse Encoder
277Niven Numbers
472
698Odious Numbers
487
800Pangram Grep
537Pernicious Numbers
588Prime Numbers
641
635Roman to Arabic
452