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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.

A009277 E.g.f. exp(tanh(x)^2) (even powers only).

Table of values

n a(n)
0 1
1 2
2 -4
3 -88
4 4496
5 -155488
6 675776
7 903834752
8 -178181918464
9 26154843525632
10 -2632795710260224
11 -207121926659381248
12 274561534481040183296
13 -132684091405061956722688
14 50873850498309673207709696

List of values

[1, 2, -4, -88, 4496, -155488, 675776, 903834752, -178181918464, 26154843525632, -2632795710260224, -207121926659381248, 274561534481040183296, -132684091405061956722688, 50873850498309673207709696]

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

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