12 Days of Christmas
89th
Abundant Numbers
160th
Catalan’s Constant
39th
Collatz
178th
Diamonds
62nd
Divisors
231st
Emirp Numbers
74th
Evil Numbers
222nd
Evil Numbers (Long)
106th
Fibonacci
353rd
Fizz Buzz
398th
Happy Numbers
96th
Hexdump
35th
Intersection
42nd
Leap Years
216th
Lucky Numbers
32nd
Morse Decoder
16th
Morse Encoder
23rd
Number Spiral
48th
Odious Numbers
161st
Odious Numbers (Long)
88th
Pernicious Numbers (Long)
44th
Prime Numbers
261st
Recamán
57th
Reverse Polish Notation
40th
Smith Numbers
36th