Abundant Numbers
39th
Abundant Numbers (Long)
41st
Collatz
75th
Divisors
113th
Evil Numbers
119th
Evil Numbers (Long)
77th
Fibonacci
198th
Fizz Buzz
33rd
Kolakoski Sequence
55th
Leap Years
226th
Lucky Numbers
29th
Niven Numbers
146th
Odious Numbers
92nd
Pernicious Numbers
98th
Prime Numbers
153rd
Quine
69th
Recamán
52nd
Rule 110
49th