12 Days of Christmas
51st
99 Bottles of Beer
31st
Arabic to Roman
42nd
Christmas Trees
78th
Emirp Numbers
91st
Evil Numbers
116th
Fibonacci
168th
Fizz Buzz
167th
Happy Numbers
67th
Odious Numbers
259th86th
Pangram Grep
Pernicious Numbers
66th
Prime Numbers
302nd137th
Roman to Arabic
Seven Segment
36th
Spelling Numbers