Abundant Numbers
20th
brainfuck
7th
Diamonds
6th
Divisors
9th
Emirp Numbers
23rd
Evil Numbers
11th
Fibonacci
19th
Fizz Buzz
20th
Happy Numbers
26th
Leap Years
17th
Niven Numbers
61st16th
Odious Numbers
10th
Ordinal Numbers
7th
Pangram Grep
Pascal’s Triangle
14th
Pernicious Numbers
32nd
Prime Numbers
16th
Quine
1st67th
Rock-paper-scissors-Spock-lizard
4th
Sierpiński Triangle
6th
Spelling Numbers
4th
λ
14th
π
9th
τ
10th
φ
11th
√2
1st
𝑒
15th