12 Days of Christmas
24th
99 Bottles of Beer
11th
221st
17th
Abundant Numbers
72nd
25th
Christmas Trees
258th
17th
Cubes
198th
15th
Diamonds
5th
15th
Divisors
402nd
17th
Emirp Numbers
164th
15th
Evil Numbers
13th
301st
23rd
Fibonacci
13th
176th
139th
129th
58th
Fizz Buzz
74th
83rd
Happy Numbers
138th
Happy Numbers (Long)
11th
Kolakoski Constant
18th
Kolakoski Sequence
8th
13th
Leap Years
517th
Leyland Numbers
106th
15th
Morse Decoder
151st
Niven Numbers
1st
50th
24th
Odious Numbers
212th
20th
Pangram Grep
163rd
Pernicious Numbers
142nd
24th
Prime Numbers
18th
119th
35th
Quine
1st
713th
Recamán
56th
Rule 110
109th
13th
Smith Numbers
181st
4th
Star Wars Opening Crawl
97th
Sudoku v2
10th
Vampire Numbers
81st
14th
Van Eck Sequence
9th
λ
10th
27th
π
22nd
36th
10th
66th
79th
75th
17th
33rd
31st
8th
38th
43rd
10th
29th
71st
162nd
82nd
26th
33rd
9th
57th
63rd
26th
219th
63rd
99th
31st
11th
9th
8th
26th
τ
10th
23rd
φ
9th
25th
√2
9th
167th
28th
𝑒
12th
101st
34th