12 Days of Christmas
7th
99 Bottles of Beer
13th
9th
Arabic to Roman
10th
8th
Christmas Trees
17th29th
10th
Divisors
33rd40th
23rd
Emirp Numbers
10th19th
15th
Evil Numbers
45th30th
24th
Fibonacci
757th
38th43rd
90th
Fizz Buzz
9th
529th18th
Happy Numbers
33rd22nd
20th
Morse Decoder
13th
Morse Encoder
11th
10th
Niven Numbers
15th
Odious Numbers
39th31st
19th
Pangram Grep
15th
17th
Pascal’s Triangle
41st
Pernicious Numbers
43rd
Prime Numbers
129th86th24th35th574th29th
Quine
1st
79th5th
69th
Roman to Arabic
119th
24th
Seven Segment
12th
10th
Sierpiński Triangle
17th
28th
Spelling Numbers
12th
π
50th13th466th26th
τ
39th10th
17th
φ
37th13th
20th
𝑒
35th15th
29th