99 Bottles of Beer
621st
Arrows
88th
Catalan Numbers
1st
Collatz
218th
Divisors
816th
Evil Numbers
253rd
Evil Numbers (Long)
162nd
Fibonacci
135th162nd
Fizz Buzz
139th864th
Happy Numbers
268th
Happy Numbers (Long)
155th
Leap Years
131st
Niven Numbers
376th
Odious Numbers
140th
Odious Numbers (Long)
137th
Pascal’s Triangle
106th
Pernicious Numbers
100th
Prime Numbers
661st
Prime Numbers (Long)
411th
Recamán
142nd