Abundant Numbers
591
Christmas Trees
381
Collatz
195
814
Divisors
534
Emirp Numbers
453
Evil Numbers
493
586
Fibonacci
325
468483
Fizz Buzz
603555604640
Foo Fizz Buzz Bar
645
Fractions
521
Gijswijt’s Sequence
87
Leap Years
548
437
Niven Numbers
563
Number Spiral
247
Odious Numbers
497
577
Pernicious Numbers
366
Prime Numbers
523
Prime Numbers (Long)
557
Quine
947
Sierpiński Triangle
99
Tongue-twisters
496
√2
697