12 Days of Christmas
182nd
Abundant Numbers
238th
Abundant Numbers (Long)
155th
Christmas Trees
406th
Collatz
528th
Divisors
976th
Evil Numbers
444th
Evil Numbers (Long)
265th
Fibonacci
1,032nd
Fizz Buzz
53rd
Foo Fizz Buzz Bar
1st
Leap Years
856th
Niven Numbers
526th
Niven Numbers (Long)
252nd
Odious Numbers
440th
Odious Numbers (Long)
210th
Prime Numbers
761st
Prime Numbers (Long)
370th