12 Days of Christmas
23rd
34th151st
99 Bottles of Beer
31st
327th
28th479th
Abundant Numbers
32nd
41st728th
Arabic to Roman
27th373rd
brainfuck
344th
Christmas Trees
46th
464th
Cubes
313th
Diamonds
33rd
512th
Divisors
26th
78th636th
Emirp Numbers
30th
520th
Evil Numbers
39th
813th
Fibonacci
122nd44th501st67th105th198th70th
491st88th217th85th99th104th893rd55th260th224th76th
Fizz Buzz
95th608th
486th1,174th
193rd255th587th
141st
Happy Numbers
28th
54th451st
Leap Years
26th
74th751st
Leyland Numbers
19th344th
Morse Decoder
208th
Morse Encoder
227th
Niven Numbers
33rd
55th716th
Odious Numbers
34th
60th512th
Ordinal Numbers
27th269th
Pangram Grep
498th
Pascal’s Triangle
18th
448th
Pernicious Numbers
35th
583rd
Poker
111th
Prime Numbers
41st
128th653rd
Quine
101st242nd
136th
115th109th72nd
87th131st
Rock-paper-scissors-Spock-lizard
254th
Roman to Arabic
309th
Rule 110
253rd
Seven Segment
321st
Sierpiński Triangle
26th324th
Spelling Numbers
175th
Sudoku
8th109th
Ten-pin Bowling
10th112th
United States
129th
16th247th
λ
22nd
π
34th
358th
τ
22nd
φ
31st
√2
31st
𝑒
23rd