12 Days of Christmas
26th
Abundant Numbers
33rd
Christmas Trees
26th
Divisors
29th
Emirp Numbers
14th
Evil Numbers
36th
Fibonacci
80th
Fizz Buzz
2,406th134th
Happy Numbers
32nd
Leap Years
43rd
Morse Decoder
9th
Morse Encoder
10th
Niven Numbers
41st
Odious Numbers
37th
Ordinal Numbers
16th
Pangram Grep
32nd
Pascal’s Triangle
19th
Pernicious Numbers
38th
Prime Numbers
21st
Seven Segment
11th
Spelling Numbers
8th