12 Days of Christmas
18th
25th
106th
99 Bottles of Beer
23rd
282nd
21st
365th
Abundant Numbers
29th
36th
565th
Arabic to Roman
19th
280th
brainfuck
270th
Christmas Trees
35th
372nd
Cubes
252nd
Diamonds
25th
396th
Divisors
22nd
71st
519th
Emirp Numbers
27th
429th
Evil Numbers
34th
666th
Fibonacci
90th
36th
387th
81st
166th
53rd
417th
71st
50th
167th
74th
79th
89th
711th
50th
216th
172nd
61st
Fizz Buzz
85th
494th
413th
1,029th
172nd
155th
468th
129th
Happy Numbers
23rd
46th
371st
Leap Years
23rd
66th
613th
Leyland Numbers
16th
279th
Morse Decoder
165th
Morse Encoder
183rd
Niven Numbers
26th
43rd
588th
Odious Numbers
29th
56th
405th
Ordinal Numbers
20th
215th
Pangram Grep
397th
Pascal’s Triangle
17th
354th
Pernicious Numbers
26th
486th
Poker
79th
Prime Numbers
33rd
113th
541st
Quine
82nd
203rd
119th
97th
91st
51st
84th
112th
Rock-paper-scissors-Spock-lizard
209th
Roman to Arabic
244th
Rule 110
196th
Seven Segment
259th
Sierpiński Triangle
19th
258th
Spelling Numbers
124th
Sudoku
6th
84th
Ten-pin Bowling
5th
84th
United States
94th
13th
181st
λ
21st
π
28th
269th
τ
20th
φ
25th
√2
24th
𝑒
21st