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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.

A330540 Expansion of e.g.f. Product_{k>=1} (1 + arcsinh(x^k)).

Table of values

n a(n)
0 1
1 1
2 2
3 11
4 48
5 349
6 2640
7 23673
8 231504
9 2693241
10 33313680
11 446104845
12 6572693160
13 103319528805
14 1750718151000
15 31865325610545
16 607019625223200
17 12253084499034225
18 263721891513921120
19 5900460781451357205
20 139338570648068278200

List of values

[1, 1, 2, 11, 48, 349, 2640, 23673, 231504, 2693241, 33313680, 446104845, 6572693160, 103319528805, 1750718151000, 31865325610545, 607019625223200, 12253084499034225, 263721891513921120, 5900460781451357205, 139338570648068278200]

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

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