12 Days of Christmas
20th
99 Bottles of Beer
30th
Abundant Numbers
10th
brainfuck
12th
Christmas Trees
15th
Diamonds
29th
Divisors
1st
Emirp Numbers
9th
Evil Numbers
12th
Fibonacci
1st
Fizz Buzz
10th
Happy Numbers
12th
Leap Years
46th
Morse Encoder
11th
Niven Numbers
24th
Odious Numbers
12th
Ordinal Numbers
8th
Pangram Grep
29th
Pascal’s Triangle
13th
Pernicious Numbers
27th
Prime Numbers
15th
179th
Quine
1st
Seven Segment
17th
Sierpiński Triangle
9th
λ
14th
π
35th
5th
246th
τ
19th
4th
φ
16th
213th
√2
188th
𝑒
5th
118th