Abundant Numbers
719
Divisors
796530673
Emirp Numbers
474
Evil Numbers
496
755
Fibonacci
756
935717
Fizz Buzz
660575666607
Happy Numbers
417
Leap Years
758529683544
Niven Numbers
745
Odious Numbers
784
Pangram Grep
513
Pernicious Numbers
427
686
Prime Numbers
563464604
Recamán
521
673580
Seven Segment
380
Van Eck Sequence
498