Abundant Numbers
578552562516
634
Arrows
478
Collatz
693
628
CSS Colors
83
Emirp Numbers
297
Evil Numbers
786
Fibonacci
935
Fizz Buzz
751
666
891518
Foo Fizz Buzz Bar
729
784
Fractions
621
Happy Numbers
486
Happy Numbers (Long)
612
ISBN
439
Niven Numbers
547
771
Odious Numbers
784
Ordinal Numbers
739
Pangram Grep
691
Pernicious Numbers
362
Prime Numbers
456
Prime Numbers (Long)
343
Quine
439674947
Recamán
420
Smith Numbers
395
Tongue-twisters
408
496
United States
153
√2
675
𝑒
669