99 Bottles of Beer
581
Abundant Numbers
699
737
Catalan Numbers
698
Christmas Trees
590
Collatz
756
653
Diamonds
302
Divisors
713
800
Evil Numbers
563
Fibonacci
610
446
Fizz Buzz
577
583
617
562
Foo Fizz Buzz Bar
572
Leap Years
651
589
Niven Numbers
721
810
Odious Numbers
583
Pascalβs Triangle
607
Prime Numbers
541
Prime Numbers (Long)
579
Tongue-twisters
501
Ο
639
β2
662