Abundant Numbers
577546561761
634
Arrows
477
Collatz
691
627
CSS Colors
82
Emirp Numbers
297
Evil Numbers
785
Fibonacci
934
Fizz Buzz
750
672
891517
Foo Fizz Buzz Bar
743
783
Fractions
620
Happy Numbers
485
Happy Numbers (Long)
610
ISBN
439
Niven Numbers
546
771
Odious Numbers
783
Ordinal Numbers
739
Pangram Grep
691
Pernicious Numbers
362
Prime Numbers
456
Prime Numbers (Long)
342
Quine
685673946
RecamΓ‘n
420
Smith Numbers
394
Tongue-twisters
408
502
United States
156
β2
674
π
669