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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.

A296727 Expansion of e.g.f. arcsinh(x)/(1 - x).

Table of values

n a(n)
0 0
1 1
2 2
3 5
4 20
5 109
6 654
7 4353
8 34824
9 324441
10 3244410
11 34795485
12 417545820
13 5536151685
14 77506123590
15 1144330385625
16 18309286170000
17 315366695240625
18 5676600514331250
19 106667957800963125
20 2133359156019262500
21 45229212438054868125
22 995042673637207098750
23 22696937952367956440625

List of values

[0, 1, 2, 5, 20, 109, 654, 4353, 34824, 324441, 3244410, 34795485, 417545820, 5536151685, 77506123590, 1144330385625, 18309286170000, 315366695240625, 5676600514331250, 106667957800963125, 2133359156019262500, 45229212438054868125, 995042673637207098750, 22696937952367956440625]

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

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