12 Days of Christmas
40th
99 Bottles of Beer
41st
Arabic to Roman
18th
Christmas Trees
52nd
Diamonds
34th
Divisors
38th
Emirp Numbers
109th
Evil Numbers
61st
Fibonacci
107th
Fizz Buzz
69th
Happy Numbers
53rd
Leap Years
28th
Niven Numbers
38th
Odious Numbers
56th
Pangram Grep
34th
Pascalβs Triangle
1st
Pernicious Numbers
85th
Prime Numbers
76th
Seven Segment
21st