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.

A100088 Expansion of (1-x^2)/((1-2*x)*(1+x^2)).

Table of values

n a(n)
0 1
1 2
2 2
3 4
4 10
5 20
6 38
7 76
8 154
9 308
10 614
11 1228
12 2458
13 4916
14 9830
15 19660
16 39322
17 78644
18 157286
19 314572
20 629146
21 1258292
22 2516582
23 5033164
24 10066330
25 20132660
26 40265318
27 80530636
28 161061274
29 322122548
30 644245094
31 1288490188
32 2576980378

List of values

[1, 2, 2, 4, 10, 20, 38, 76, 154, 308, 614, 1228, 2458, 4916, 9830, 19660, 39322, 78644, 157286, 314572, 629146, 1258292, 2516582, 5033164, 10066330, 20132660, 40265318, 80530636, 161061274, 322122548, 644245094, 1288490188, 2576980378]