99 Bottles of Beer
409
Abundant Numbers
659
544
Catalan Numbers
679
Christmas Trees
505
Collatz
619
621
Diamonds
247
Divisors
664
721
Evil Numbers
524
Fibonacci
602
435
Fizz Buzz
571
565
559
497
Foo Fizz Buzz Bar
448
Leap Years
637
580
Niven Numbers
707
670
Odious Numbers
523
Pascalβs Triangle
548
Prime Numbers
530
Prime Numbers (Long)
563
Tongue-twisters
280
Ο
608
β2
647