Abundant Numbers
34th
Abundant Numbers (Long)
34th
Collatz
81st59th
Divisors
151st58th
Evil Numbers
40th
Evil Numbers (Long)
37th
Fibonacci
215th100th
Leap Years
39th550th
Leyland Numbers
9th
Medal Tally
8th
Niven Numbers
108th49th
Niven Numbers (Long)
39th
Odious Numbers
40th
Odious Numbers (Long)
34th
Pascal’s Triangle
Pernicious Numbers
38th
Pernicious Numbers (Long)
24th
Prime Numbers
57th
Prime Numbers (Long)
47th
Recamán
30th18th321st
Reverse Polish Notation
21st