99 Bottles of Beer
12th
Divisors
31st
Emirp Numbers
22nd
Evil Numbers
21st
Fibonacci
53rd
Fizz Buzz
42nd
Happy Numbers
17th
Morse Encoder
5th
Niven Numbers
35th
Odious Numbers
24th
Pangram Grep
12th
Pascalβs Triangle
44th
Pernicious Numbers
31st
Prime Numbers
17th
Quine
41st
Roman to Arabic
8th
Seven Segment
23rd
Spelling Numbers
8th