Abundant Numbers
28th
Collatz
31st474th
Divisors
203rd
Evil Numbers
89th
Evil Numbers (Long)
62nd
Fibonacci
260th
Fizz Buzz
291st
Foo Fizz Buzz Bar
47th
Fractions
61st
Happy Numbers
54th
Happy Numbers (Long)
40th
Intersection
31st
Leap Years
41st
Niven Numbers
117th
Odious Numbers
80th
Odious Numbers (Long)
58th
Pernicious Numbers
80th
Pernicious Numbers (Long)
43rd
Prime Numbers
79th
Quine
96th
Recamán
22nd
Vampire Numbers
38th
Van Eck Sequence
14th
π
63rd
√2
32nd
𝑒
52nd