12 Days of Christmas
120th
91st
99 Bottles of Beer
61st
Arabic to Roman
56th
Christmas Trees
425th36th
Cubes
33rd
Diamonds
50th
Divisors
492nd71st
Emirp Numbers
463rd26th
Evil Numbers
77th
Fibonacci
914th61st
Fizz Buzz
77th
Happy Numbers
39th
Leap Years
88th
Morse Decoder
27th
Morse Encoder
29th
Niven Numbers
77th
Odious Numbers
60th
Ordinal Numbers
118th45th
Pangram Grep
82nd
Pascal’s Triangle
70th
Pernicious Numbers
63rd
Prime Numbers
27th
Quine
99th
Rock-paper-scissors-Spock-lizard
225th32nd
Roman to Arabic
54th
Rule 110
38th
Seven Segment
39th
Sierpiński Triangle
37th
λ
21st
π
114th188th79th
τ
50th
φ
58th
√2
59th
𝑒
63rd