Christmas Trees
30th
Cubes
13th
Divisors
56th
Emirp Numbers
47th
Fibonacci
138th
Fizz Buzz
112th
Happy Numbers
50th
Morse Decoder
9th
Niven Numbers
59th
Pangram Grep
Pascal’s Triangle
49th
Prime Numbers
104th
Quine
33rd775th
Rock-paper-scissors-Spock-lizard
15th
Roman to Arabic
19th
Sierpiński Triangle
28th