12 Days of Christmas
128th
97th
99 Bottles of Beer
62nd
Arabic to Roman
57th
Christmas Trees
439th38th
Cubes
35th
Diamonds
54th
Divisors
510th75th
Emirp Numbers
475th27th
Evil Numbers
81st
Fibonacci
939th63rd
Fizz Buzz
80th
Happy Numbers
40th
Leap Years
97th
Morse Decoder
28th
Morse Encoder
31st
Niven Numbers
82nd
Odious Numbers
62nd
Ordinal Numbers
125th47th
Pangram Grep
87th
Pascal’s Triangle
72nd
Pernicious Numbers
67th
Prime Numbers
27th
Quine
97th
Rock-paper-scissors-Spock-lizard
231st34th
Roman to Arabic
55th
Rule 110
40th
Seven Segment
40th
Sierpiński Triangle
40th
λ
23rd
π
118th196th49th
τ
38th
φ
45th
√2
46th
𝑒
65th