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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.

A357598 Expansion of e.g.f. sinh(2 * (exp(x)-1)) / 2.

Table of values

n a(n)
0 0
1 1
2 1
3 5
4 25
5 117
6 601
7 3509
8 22457
9 153141
10 1105561
11 8453557
12 68339833
13 581495605
14 5184047961
15 48259748533
16 468040609593
17 4719817792565
18 49396003390489
19 535526127566773
20 6004124908829177
21 69509047405180213
22 829801009239621849
23 10202835010223731893

List of values

[0, 1, 1, 5, 25, 117, 601, 3509, 22457, 153141, 1105561, 8453557, 68339833, 581495605, 5184047961, 48259748533, 468040609593, 4719817792565, 49396003390489, 535526127566773, 6004124908829177, 69509047405180213, 829801009239621849, 10202835010223731893]

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

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