Abundant Numbers
719
Divisors
795773673
Emirp Numbers
474
Evil Numbers
505
755
Fibonacci
755
935717
Fizz Buzz
659817666606
Happy Numbers
417
Leap Years
757832683543
Niven Numbers
744
Odious Numbers
784
Pangram Grep
512
Pernicious Numbers
426
686
Prime Numbers
563720604
Recamán
520
673579
Seven Segment
384
Van Eck Sequence
497