12 Days of Christmas
52nd
99 Bottles of Beer
31st
Arabic to Roman
42nd
Christmas Trees
79th
Emirp Numbers
93rd
Evil Numbers
116th
Fibonacci
169th
Fizz Buzz
167th
Happy Numbers
67th
Odious Numbers
260th86th
Pangram Grep
Pernicious Numbers
70th
Prime Numbers
302nd139th
Roman to Arabic
Seven Segment
37th
Spelling Numbers