12 Days of Christmas
117th
91st
99 Bottles of Beer
61st
Arabic to Roman
54th
Christmas Trees
413th35th
Cubes
32nd
Diamonds
47th
Divisors
483rd70th
Emirp Numbers
453rd26th
Evil Numbers
75th
Fibonacci
886th59th
Fizz Buzz
76th
Happy Numbers
38th
Leap Years
86th
Morse Decoder
26th
Morse Encoder
28th
Niven Numbers
74th
Odious Numbers
58th
Ordinal Numbers
116th43rd
Pangram Grep
81st
Pascal’s Triangle
68th
Pernicious Numbers
61st
Prime Numbers
26th
Quine
99th
Rock-paper-scissors-Spock-lizard
220th31st
Roman to Arabic
51st
Rule 110
37th
Seven Segment
38th
Sierpiński Triangle
36th
λ
21st
π
109th182nd78th
τ
50th
φ
57th
√2
57th
𝑒
63rd