99 Bottles of Beer
581st
Arrows
82nd
Catalan Numbers
1st
Collatz
191st
Divisors
782nd
Evil Numbers
238th
Evil Numbers (Long)
148th
Fibonacci
121st148th
Fizz Buzz
133rd829th
Happy Numbers
251st
Happy Numbers (Long)
146th
Leap Years
119th
Niven Numbers
347th
Odious Numbers
130th
Odious Numbers (Long)
121st
Pascal’s Triangle
93rd
Pernicious Numbers
93rd
Prime Numbers
630th
Prime Numbers (Long)
381st
Recamán
125th