Abundant Numbers
38th
Abundant Numbers (Long)
41st
Collatz
90th68th
Divisors
162nd63rd
Evil Numbers
45th
Evil Numbers (Long)
42nd
Fibonacci
226th114th
Leap Years
45th574th
Leyland Numbers
10th
Medal Tally
8th
Niven Numbers
115th55th
Niven Numbers (Long)
44th
Odious Numbers
47th
Odious Numbers (Long)
40th
Pascal’s Triangle
Pernicious Numbers
47th
Pernicious Numbers (Long)
26th
Prime Numbers
63rd
Prime Numbers (Long)
53rd
Recamán
33rd19th344th
Reverse Polish Notation
21st