Abundant Numbers
17th
brainfuck
7th
Diamonds
6th
Divisors
9th
Emirp Numbers
22nd
Evil Numbers
9th
Fibonacci
1st
Fizz Buzz
20th
Happy Numbers
16th
Leap Years
14th
Niven Numbers
60th16th
Odious Numbers
8th
Ordinal Numbers
7th
Pangram Grep
Pascal’s Triangle
14th
Pernicious Numbers
32nd
Prime Numbers
15th
Quine
1st67th
Rock-paper-scissors-Spock-lizard
7th
Sierpiński Triangle
6th
Spelling Numbers
4th
λ
13th
π
9th
τ
10th
φ
13th
√2
21st
𝑒
15th