99 Bottles of Beer
28th
Abundant Numbers
39th
Arabic to Roman
22nd
Christmas Trees
28th11th
29th
23rd
6th
Divisors
266th
266th
55th
Evil Numbers
112th
94th
40th
Fibonacci
356th
397th161st49th
Fizz Buzz
89th368th
800th205th152nd
Happy Numbers
111th
52nd
Leap Years
140th
76th125th53rd35th109th
41st
Niven Numbers
44th
Ordinal Numbers
33rd
Pascal’s Triangle
35th
Pernicious Numbers
96th
74th
41st
Prime Numbers
230th
66th
160th
Prime Numbers (Long)
1st
Quine
118th
Rock-paper-scissors-Spock-lizard
11th
Roman to Arabic
25th
United States
20th
Van Eck Sequence
10th