12 Days of Christmas
20th
12th99 Bottles of Beer
6th
6thAbundant Numbers
23rd
17thArabic to Roman
24th
brainfuck
11th
Christmas Trees
11th
8thDiamonds
25th
10thDivisors
16th
12thEmirp Numbers
30th
17thEvil Numbers
13th
10thFibonacci
1st
13thFizz Buzz
1st
22ndHappy Numbers
31st
17thLeap Years
1st
10thLook and Say
9th
Morse Decoder
15th
Morse Encoder
11th
Niven Numbers
1st
18thOdious Numbers
35th
10thOrdinal Numbers
7th
Pangram Grep
80th
7thPascal’s Triangle
29th
16thPernicious Numbers
46th
22ndPrime Numbers
1st
23rdQuine
81st
25th
Roman to Arabic
26th
Rule 110
20th
Seven Segment
19th
Sierpiński Triangle
42nd
15thSpelling Numbers
6th
λ
5th
13thπ
29th
1stτ
24th
1stφ
1st
35th√2
1st
1st𝑒
1st
1st