12 Days of Christmas
117th
91st
99 Bottles of Beer
61st
Arabic to Roman
54th
Christmas Trees
417th36th
Cubes
33rd
Diamonds
48th
Divisors
486th71st
Emirp Numbers
456th26th
Evil Numbers
75th
Fibonacci
891st59th
Fizz Buzz
76th
Happy Numbers
38th
Leap Years
87th
Morse Decoder
27th
Morse Encoder
29th
Niven Numbers
75th
Odious Numbers
58th
Ordinal Numbers
117th44th
Pangram Grep
81st
Pascal’s Triangle
69th
Pernicious Numbers
62nd
Prime Numbers
26th
Quine
99th
Rock-paper-scissors-Spock-lizard
220th31st
Roman to Arabic
52nd
Rule 110
37th
Seven Segment
38th
Sierpiński Triangle
36th
λ
21st
π
109th185th79th
τ
50th
φ
57th
√2
58th
𝑒
63rd