Abundant Numbers
41st
Abundant Numbers (Long)
41st
Collatz
75th
Divisors
114th
Evil Numbers
120th
Evil Numbers (Long)
79th
Fibonacci
199th
Fizz Buzz
33rd
Kolakoski Sequence
55th
Leap Years
232nd
Lucky Numbers
29th
Niven Numbers
152nd
Odious Numbers
95th
Pernicious Numbers
101st
Prime Numbers
153rd
Quine
69th
Recamán
54th
Rule 110
50th