12 Days of Christmas
87th
Abundant Numbers
155th
Catalan’s Constant
38th
Collatz
163rd
Diamonds
59th
Divisors
223rd
Emirp Numbers
72nd
Evil Numbers
214th
Evil Numbers (Long)
101st
Fibonacci
336th
Fizz Buzz
377th
Happy Numbers
94th
Hexdump
32nd
Intersection
41st
Leap Years
207th
Lucky Numbers
31st
Morse Decoder
16th
Morse Encoder
20th
Number Spiral
46th
Odious Numbers
153rd
Odious Numbers (Long)
83rd
Pernicious Numbers (Long)
42nd
Prime Numbers
252nd
Recamán
52nd
Reverse Polish Notation
39th
Smith Numbers
33rd