Abundant Numbers
719
Divisors
796530673
Emirp Numbers
474
Evil Numbers
505
755
Fibonacci
755
935717
Fizz Buzz
660575666606
Happy Numbers
417
Leap Years
758529683544
Niven Numbers
745
Odious Numbers
784
Pangram Grep
513
Pernicious Numbers
427
686
Prime Numbers
563463604
Recamán
520
673580
Seven Segment
384
Van Eck Sequence
498