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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.

A323721 Expansion of e.g.f. log(2*exp(x/2)*cosh(sqrt(5)*x/2) - 1).

Table of values

n a(n)
0 0
1 1
2 2
3 -3
4 -6
5 50
6 -13
7 -1498
8 6234
9 59145
10 -748678
11 -1415238
12 92962179
13 -411570250
14 -11993577118
15 167710062977
16 1224967301754
17 -51920085859710
18 135335259830867
19 14992073315394822
20 -201575378391009366
21 -3667884891055854535
22 128570113943360964602
23 209758874692705861322

List of values

[0, 1, 2, -3, -6, 50, -13, -1498, 6234, 59145, -748678, -1415238, 92962179, -411570250, -11993577118, 167710062977, 1224967301754, -51920085859710, 135335259830867, 14992073315394822, -201575378391009366, -3667884891055854535, 128570113943360964602, 209758874692705861322]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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