12 Days of Christmas
7th
99 Bottles of Beer
13th
8th
Arabic to Roman
80th
brainfuck
19th
Christmas Trees
25th
12th
152nd
Divisors
85th
75th
6th
7th
82nd
17th
Emirp Numbers
5th
22nd
58th
26th
Evil Numbers
79th
15th
14th
301st
19th
Fibonacci
1st
9th
5th
50th
49th
Fizz Buzz
2nd
140th
14th
1st
32nd
12th
81st
744th
59th
Happy Numbers
4th
18th
Leap Years
30th
36th
57th
9th
20th
7th
Niven Numbers
8th
28th
Odious Numbers
76th
15th
15th
213th
22nd
Pangram Grep
10th
7th
9th
242nd
18th
Pascalβs Triangle
106th
11th
10th
Pernicious Numbers
16th
34th
Prime Numbers
82nd
10th
24th
21st
17th
405th
15th
123rd
18th
Quine
1st
23rd
21st
22nd
1st
25th
1st
1st
1st
4th
51st
11th
1st
Roman to Arabic
85th
17th
Rule 110
4th
Seven Segment
7th
SierpiΕski Triangle
19th
4th
10th
Spelling Numbers
12th
1st
Ο
60th
Ο
44th
Ο
53rd
π
55th
99th