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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.

A307979 Expansion of e.g.f. exp((cosh(x) - cos(x))/2) (even powers only).

Table of values

n a(n)
0 1
1 1
2 3
3 16
4 133
5 1576
6 24783
7 495496
8 12245353
9 364768576
10 12838252443
11 526095538816
12 24781014246253
13 1326767681420416
14 80013978835916583
15 5392682199766283776
16 403287063337529642833
17 33261775377836063850496
18 3009257393136250807614003
19 297176659119237977183973376

List of values

[1, 1, 3, 16, 133, 1576, 24783, 495496, 12245353, 364768576, 12838252443, 526095538816, 24781014246253, 1326767681420416, 80013978835916583, 5392682199766283776, 403287063337529642833, 33261775377836063850496, 3009257393136250807614003, 297176659119237977183973376]

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

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