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.

A291247 p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S - S^2 - S^3 + S^4.

Table of values

n a(n)
0 1
1 2
2 5
3 10
4 24
5 49
6 112
7 238
8 526
9 1142
10 2491
11 5442
12 11842
13 25873
14 56344
15 122975
16 268042
17 584633
18 1274820
19 2779895
20 6062306
21 13219186
22 28827703
23 62861754
24 137082358
25 298927682
26 651861824
27 1421488867
28 3099781932
29 6759580078
30 14740333285
31 32143687954

List of values

[1, 2, 5, 10, 24, 49, 112, 238, 526, 1142, 2491, 5442, 11842, 25873, 56344, 122975, 268042, 584633, 1274820, 2779895, 6062306, 13219186, 28827703, 62861754, 137082358, 298927682, 651861824, 1421488867, 3099781932, 6759580078, 14740333285, 32143687954]