99 Bottles of Beer
577
Abundant Numbers
688
712
Catalan Numbers
679
Christmas Trees
581
Collatz
739
626
Diamonds
296
Divisors
701
772
Evil Numbers
543
Fibonacci
602
435
Fizz Buzz
572
569
613
554
Foo Fizz Buzz Bar
564
Leap Years
638
580
Niven Numbers
709
787
Odious Numbers
561
Pascalβs Triangle
591
Prime Numbers
530
Prime Numbers (Long)
563
Tongue-twisters
498
Ο
622
β2
649