Abundant Numbers
8th
Abundant Numbers (Long)
2nd
Arithmetic Numbers
24th
Catalan Numbers
23rd
Collatz
29th
Divisors
43rd33rd
Evil Numbers
36th
133rd
Evil Numbers (Long)
40th
Fibonacci
115th
Fizz Buzz
11th3rd
Foo Fizz Buzz Bar
28th
Happy Numbers
26th
Happy Numbers (Long)
17th
Leap Years
70th
Leyland Numbers
26th
Niven Numbers
72nd
Niven Numbers (Long)
33rd
Odious Numbers
45th19th480th
Odious Numbers (Long)
34th
Pascal’s Triangle
35th46th
Pernicious Numbers
44th
Prime Numbers
41st
Prime Numbers (Long)
34th
Recamán
20th
Smith Numbers
26th
Sudoku
10th
Van Eck Sequence
19th