12 Days of Christmas
103rd
Abundant Numbers
181st
Catalan’s Constant
44th
Collatz
204th
Diamonds
68th
Divisors
256th
Emirp Numbers
85th
Evil Numbers
245th
Evil Numbers (Long)
124th
Fibonacci
391st
Fizz Buzz
427th
Happy Numbers
104th
Hexdump
38th
Intersection
52nd
Leap Years
242nd
Lucky Numbers
39th
Morse Decoder
16th
Morse Encoder
23rd
Number Spiral
52nd
Odious Numbers
179th
Odious Numbers (Long)
106th
Pernicious Numbers (Long)
56th
Prime Numbers
288th
Recamán
65th
Reverse Polish Notation
46th
Smith Numbers
40th