Abundant Numbers
631
Christmas Trees
494
Collatz
193
733
Divisors
529
Emirp Numbers
371
Evil Numbers
479
665
Fibonacci
324
466481
Fizz Buzz
600552601719
Foo Fizz Buzz Bar
730
Fractions
521
Gijswijt’s Sequence
85
Leap Years
544
435
Niven Numbers
671
Number Spiral
201
Odious Numbers
488
574
Pernicious Numbers
493
Prime Numbers
523
Prime Numbers (Long)
555
Quine
945
Sierpiński Triangle
130
Tongue-twisters
277
√2
690