cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A165941 G.f.: A(x) = exp( Sum_{n>=1} 2^n * x^n/(n*(1+x^n)) ).

Table of values

n a(n)
0 1
1 2
2 2
3 6
4 10
5 18
6 42
7 78
8 154
9 314
10 626
11 1246
12 2498
13 4994
14 9970
15 19974
16 39930
17 79826
18 159706
19 319374
20 638714
21 1277530
22 2554978
23 5109854
24 10219922
25 20439714
26 40879234
27 81758854
28 163517466
29 327034514
30 654069866
31 1308139246
32 2616277578

List of values

[1, 2, 2, 6, 10, 18, 42, 78, 154, 314, 626, 1246, 2498, 4994, 9970, 19974, 39930, 79826, 159706, 319374, 638714, 1277530, 2554978, 5109854, 10219922, 20439714, 40879234, 81758854, 163517466, 327034514, 654069866, 1308139246, 2616277578]