12 Days of Christmas
105th
77th
99 Bottles of Beer
55th
Christmas Trees
349th
34th
Cubes
29th
Diamonds
41st
Divisors
424th
63rd
Emirp Numbers
391st
23rd
Evil Numbers
71st
Fibonacci
752nd
54th
Fizz Buzz
59th
Happy Numbers
35th
Leap Years
80th
Morse Decoder
22nd
Morse Encoder
20th
Niven Numbers
65th
Odious Numbers
54th
Ordinal Numbers
96th
41st
Pangram Grep
74th
Pascal’s Triangle
57th
Pernicious Numbers
52nd
Prime Numbers
23rd
Quine
84th
Rock-paper-scissors-Spock-lizard
189th
27th
Roman to Arabic
45th
Rule 110
35th
Seven Segment
35th
Sierpiński Triangle
33rd
λ
19th
π
89th
149th
72nd
τ
47th
φ
51st
√2
48th
𝑒
56th