12 Days of Christmas
15th
99 Bottles of Beer
20th
Abundant Numbers
75th
Arabic to Roman
9th
brainfuck
8th
Christmas Trees
31st
Diamonds
16th
Divisors
92nd
Emirp Numbers
34th
Evil Numbers
31st
Fibonacci
72nd
Fizz Buzz
88th339th
Happy Numbers
38th
Leap Years
94th
Niven Numbers
51st
Odious Numbers
31st
Ordinal Numbers
17th
Pangram Grep
37th
Pascal’s Triangle
45th
Pernicious Numbers
43rd
Prime Numbers
83rd
Quine
81st
Roman to Arabic
33rd
Rule 110
23rd
Seven Segment
16th
Sierpiński Triangle
23rd
Spelling Numbers
8th
π
33rd
𝑒
33rd