12 Days of Christmas
14th
99 Bottles of Beer
20th
Abundant Numbers
64th
Arabic to Roman
8th
brainfuck
7th
Christmas Trees
31st
Diamonds
16th
Divisors
81st
Emirp Numbers
33rd
Evil Numbers
29th
Fibonacci
64th
Fizz Buzz
84th317th
Happy Numbers
36th
Leap Years
88th
Niven Numbers
43rd
Odious Numbers
29th
Ordinal Numbers
15th
Pangram Grep
33rd
Pascal’s Triangle
42nd
Pernicious Numbers
40th
Prime Numbers
70th
Quine
76th
Roman to Arabic
27th
Rule 110
21st
Seven Segment
15th
Sierpiński Triangle
22nd
Spelling Numbers
8th
π
30th
𝑒
32nd