12 Days of Christmas
7th
99 Bottles of Beer
13th
9th
Arabic to Roman
10th
8th
Christmas Trees
17th29th
10th
Divisors
32nd40th
23rd
Emirp Numbers
10th19th
15th
Evil Numbers
44th29th
24th
Fibonacci
749th
38th43rd
90th
Fizz Buzz
9th
527th18th
Happy Numbers
33rd22nd
20th
Morse Decoder
12th
Morse Encoder
11th
10th
Niven Numbers
15th
Odious Numbers
38th31st
19th
Pangram Grep
15th
17th
Pascal’s Triangle
41st
Pernicious Numbers
42nd
Prime Numbers
129th86th24th35th571st29th
Quine
1st
79th5th
69th
Roman to Arabic
117th
24th
Seven Segment
12th
10th
Sierpiński Triangle
17th
28th
Spelling Numbers
12th
π
47th13th464th26th
τ
38th10th
17th
φ
36th13th
20th
𝑒
34th15th
29th