12 Days of Christmas
8th
99 Bottles of Beer
13th
10th
Arabic to Roman
10th
10th
Christmas Trees
17th29th
10th
Divisors
34th41st
24th
Emirp Numbers
10th20th
15th
Evil Numbers
49th30th
25th
Fibonacci
797th
39th45th
109th
Fizz Buzz
9th
572nd18th
Happy Numbers
35th23rd
21st
Morse Decoder
14th
Morse Encoder
12th
10th
Niven Numbers
15th
Odious Numbers
42nd31st
20th
Pangram Grep
16th
20th
Pascal’s Triangle
43rd
Pernicious Numbers
46th
Prime Numbers
139th90th24th37th614th30th
Quine
1st
87th6th
72nd
Roman to Arabic
123rd
28th
Seven Segment
12th
12th
Sierpiński Triangle
18th
29th
Spelling Numbers
12th
π
54th14th502nd26th
τ
44th11th
18th
φ
39th13th
20th
𝑒
37th16th
29th