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.

A363108 Expansion of g.f. A(x) satisfying 3 = Sum_{n=-oo..+oo} (-1)^n * x^(2*n) * (3*A(x) + x^(n-2))^(n+1).

Table of values

n a(n)
0 1
1 2
2 7
3 26
4 86
5 318
6 1165
7 4312
8 16318
9 62020
10 238165
11 921980
12 3590145
13 14067188
14 55399442
15 219172028
16 870736366
17 3472155062
18 13892694747
19 55759406580
20 224427809830
21 905659181212
22 3663475842865
23 14851965523630
24 60334690089827
25 245572722474460
26 1001306332164918

List of values

[1, 2, 7, 26, 86, 318, 1165, 4312, 16318, 62020, 238165, 921980, 3590145, 14067188, 55399442, 219172028, 870736366, 3472155062, 13892694747, 55759406580, 224427809830, 905659181212, 3663475842865, 14851965523630, 60334690089827, 245572722474460, 1001306332164918]