Abundant Numbers
14th55th
Abundant Numbers (Long)
11th37th
Collatz
11th176th
Divisors
16th193rd
Emirp Numbers
12th111th
Emirp Numbers (Long)
64th
Evil Numbers
17th137th
Evil Numbers (Long)
15th68th
Fibonacci
49th452nd
Fizz Buzz
16th1,069th
Foo Fizz Buzz Bar
14th
Happy Numbers
21st129th
Happy Numbers (Long)
12th74th
Leap Years
15th142nd
Niven Numbers
17th1st
Niven Numbers (Long)
17th20th
Odious Numbers
17th122nd
Odious Numbers (Long)
15th61st
Pernicious Numbers
107th
Pernicious Numbers (Long)
64th
Prime Numbers
16th278th
Prime Numbers (Long)
19th132nd