12 Days of Christmas
24th
99 Bottles of Beer
11th
256th
17th
Abundant Numbers
126th
25th
Christmas Trees
276th
17th
Cubes
210th
15th
Diamonds
5th
16th
Divisors
423rd
17th
Emirp Numbers
195th
15th
Evil Numbers
14th
301st
23rd
Fibonacci
13th
177th
139th
129th
58th
Fizz Buzz
74th
84th
Happy Numbers
165th
Happy Numbers (Long)
11th
Kolakoski Constant
18th
Kolakoski Sequence
8th
13th
Leap Years
531st
Leyland Numbers
127th
17th
Morse Decoder
93rd
Niven Numbers
1st
50th
24th
Odious Numbers
213th
20th
Pangram Grep
185th
Pernicious Numbers
143rd
24th
Prime Numbers
19th
120th
35th
Quine
1st
721st
Recamán
56th
Rule 110
123rd
13th
Smith Numbers
183rd
4th
Star Wars Opening Crawl
99th
Sudoku v2
10th
Vampire Numbers
90th
14th
Van Eck Sequence
9th
λ
10th
27th
π
24th
10th
68th
81st
77th
17th
35th
33rd
8th
38th
43rd
10th
29th
73rd
167th
82nd
27th
33rd
9th
59th
66th
29th
233rd
65th
101st
32nd
11th
9th
8th
24th
τ
10th
23rd
φ
9th
25th
√2
9th
186th
28th
𝑒
12th
117th
34th