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.

A291409 p-INVERT of (1,1,0,0,0,0,...), where p(S) = (1 - S^2)(1 - S)^2.

Table of values

n a(n)
0 2
1 6
2 14
3 31
4 66
5 136
6 272
7 534
8 1030
9 1958
10 3678
11 6837
12 12594
13 23016
14 41768
15 75325
16 135084
17 241032
18 428112
19 757236
20 1334292
21 2342892
22 4100676
23 7155937
24 12453170
25 21616242
26 37432010
27 64675099
28 111512574
29 191893120
30 329605760
31 565166682
32 967491754
33 1653659282

List of values

[2, 6, 14, 31, 66, 136, 272, 534, 1030, 1958, 3678, 6837, 12594, 23016, 41768, 75325, 135084, 241032, 428112, 757236, 1334292, 2342892, 4100676, 7155937, 12453170, 21616242, 37432010, 64675099, 111512574, 191893120, 329605760, 565166682, 967491754, 1653659282]