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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.

A296680 Expansion of e.g.f. arcsin(arctanh(x)) (odd powers only).

Table of values

n a(n)
0 1
1 3
2 53
3 2359
4 198953
5 27412011
6 5625656541
7 1613676694239
8 617477049181521
9 304167421243513683
10 187546541676182230149
11 141512355477854459198343
12 128265950128144233675269241
13 137512081213377707268891639675
14 172108297920263623816775456321325

List of values

[1, 3, 53, 2359, 198953, 27412011, 5625656541, 1613676694239, 617477049181521, 304167421243513683, 187546541676182230149, 141512355477854459198343, 128265950128144233675269241, 137512081213377707268891639675, 172108297920263623816775456321325]

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

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