99 Bottles of Beer
19th
Arabic to Roman
Christmas Trees
10th
Cubes
8th
Diamonds
7th
Divisors
118th60th
Emirp Numbers
23rd
Evil Numbers
41st
Fibonacci
Fizz Buzz
29th
Happy Numbers
Leap Years
19th
Leyland Numbers
18th
Niven Numbers
39th
Odious Numbers
40th
Ordinal Numbers
20th
Pangram Grep
19th
Pascal’s Triangle
25th
Pernicious Numbers
37th
Prime Numbers
45th
Quine
65th