12 Days of Christmas
100th
Abundant Numbers
177th
Catalan’s Constant
42nd
Collatz
198th
Diamonds
67th
Divisors
250th
Emirp Numbers
80th
Evil Numbers
243rd
Evil Numbers (Long)
120th
Fibonacci
385th
Fizz Buzz
421st
Happy Numbers
100th
Hexdump
37th
Intersection
44th
Leap Years
236th
Lucky Numbers
36th
Morse Decoder
16th
Morse Encoder
23rd
Number Spiral
51st
Odious Numbers
178th
Odious Numbers (Long)
103rd
Pernicious Numbers (Long)
53rd
Prime Numbers
280th
Recamán
63rd
Reverse Polish Notation
45th
Smith Numbers
38th