12 Days of Christmas
21st
32nd145th
99 Bottles of Beer
29th
323rd
27th471st
Abundant Numbers
32nd
41st719th
Arabic to Roman
27th365th
brainfuck
332nd
Christmas Trees
45th
457th
Cubes
312th
Diamonds
32nd
506th
Divisors
26th
77th620th
Emirp Numbers
28th
513th
Evil Numbers
38th
799th
Fibonacci
115th42nd476th66th101st196th68th
482nd87th206th83rd96th100th875th55th253rd220th74th
Fizz Buzz
94th588th
475th1,160th
191st248th576th
140th
Happy Numbers
27th
54th443rd
Leap Years
25th
74th739th
Leyland Numbers
19th339th
Morse Decoder
202nd
Morse Encoder
227th
Niven Numbers
32nd
54th704th
Odious Numbers
33rd
60th503rd
Ordinal Numbers
27th265th
Pangram Grep
488th
Pascal’s Triangle
18th
434th
Pernicious Numbers
34th
573rd
Poker
105th
Prime Numbers
40th
127th642nd
Quine
99th247th
134th
113th108th67th
107th131st
Rock-paper-scissors-Spock-lizard
249th
Roman to Arabic
303rd
Rule 110
245th
Seven Segment
318th
Sierpiński Triangle
24th317th
Spelling Numbers
169th
Sudoku
8th107th
Ten-pin Bowling
10th106th
United States
127th
16th244th
λ
22nd
π
32nd
352nd
τ
21st
φ
30th
√2
30th
𝑒
22nd