12 Days of Christmas
113th
86th
99 Bottles of Beer
59th
Arabic to Roman
52nd
Christmas Trees
376th32nd
Cubes
31st
Diamonds
46th
Divisors
449th68th
Emirp Numbers
418th75th
Evil Numbers
74th
Fibonacci
857th57th
Fizz Buzz
69th
Happy Numbers
64th
Leap Years
85th
Morse Decoder
25th
Morse Encoder
26th
Niven Numbers
71st
Odious Numbers
56th
Ordinal Numbers
73rd43rd
Pangram Grep
80th
Pascal’s Triangle
63rd
Pernicious Numbers
58th
Prime Numbers
21st
Quine
96th
Rock-paper-scissors-Spock-lizard
235th29th
Roman to Arabic
49th
Rule 110
40th
Seven Segment
38th
Sierpiński Triangle
36th
λ
25th
π
99th141st76th
τ
48th
φ
54th
√2
51st
𝑒
61st