Abundant Numbers
53rd
25th
9th
23rd
Abundant Numbers (Long)
31st
16th
10th
18th
Catalan Numbers
14th
Collatz
15th
6th
21st
6th
Divisors
67th
36th
Emirp Numbers
28th
12th
Emirp Numbers (Long)
12th
9th
Evil Numbers
29th
23rd
29th
487th
Evil Numbers (Long)
19th
17th
25th
260th
Fibonacci
41st
90th
23rd
218th
103rd
106th
9th
32nd
37th
9th
14th
12th
32nd
117th
1st
7th
6th
121st
369th
81st
18th
16th
108th
47th
56th
102nd
124th
17th
752nd
19th
40th
180th
67th
29th
12th
26th
Fizz Buzz
97th
27th
10th
Fractions
14th
Game of Life
8th
Happy Numbers
24th
23rd
Happy Numbers (Long)
20th
23rd
Kolakoski Sequence
18th
19th
5th
Leyland Numbers
19th
17th
Look and Say
17th
Lucky Numbers
21st
Niven Numbers
32nd
25th
Niven Numbers (Long)
23rd
20th
Number Spiral
14th
Odious Numbers
26th
1st
26th
382nd
Odious Numbers (Long)
17th
1st
24th
211th
Pascal’s Triangle
1st
14th
Pernicious Numbers
25th
16th
22nd
Pernicious Numbers (Long)
23rd
7th
13th
Prime Numbers
30th
1st
11th
1st
20th
63rd
Prime Numbers (Long)
9th
1st
1st
1st
13th
25th
Quine
78th
81st
66th
284th
19th
52nd
Recamán
10th
Sierpiński Triangle
7th
Smith Numbers
15th
Tongue-twisters
7th
Van Eck Sequence
10th
16th