12 Days of Christmas
27th
Abundant Numbers
34th
Christmas Trees
26th
Divisors
32nd
Emirp Numbers
14th
Evil Numbers
36th
Fibonacci
81st
Fizz Buzz
2,442nd134th
Happy Numbers
32nd
Leap Years
44th
Morse Decoder
9th
Morse Encoder
10th
Niven Numbers
42nd
Odious Numbers
37th
Ordinal Numbers
16th
Pangram Grep
34th
Pascal’s Triangle
21st
Pernicious Numbers
42nd
Prime Numbers
24th
Seven Segment
12th
Spelling Numbers
8th