12 Days of Christmas
131st
101st
99 Bottles of Beer
65th
Arabic to Roman
59th
Christmas Trees
466th40th
Cubes
37th
Diamonds
59th
Divisors
527th80th
Emirp Numbers
491st28th
Evil Numbers
85th
Fibonacci
972nd65th
Fizz Buzz
83rd
Happy Numbers
43rd
Leap Years
99th
Morse Decoder
31st
Morse Encoder
33rd
Niven Numbers
85th
Odious Numbers
66th
Ordinal Numbers
133rd49th
Pangram Grep
91st
Pascal’s Triangle
77th
Pernicious Numbers
70th
Prime Numbers
27th
Quine
100th
Rock-paper-scissors-Spock-lizard
240th36th
Roman to Arabic
57th
Rule 110
41st
Seven Segment
42nd
Sierpiński Triangle
41st
λ
24th
π
119th211th54th
τ
40th
φ
50th
√2
51st
𝑒
67th