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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.

A302611 Expansion of e.g.f. -log(1 - x)*arctanh(x).

Table of values

n a(n)
0 0
1 0
2 2
3 3
4 16
5 50
6 368
7 1764
8 16896
9 109584
10 1297152
11 10628640
12 149944320
13 1486442880
14 24349317120
15 283465647360
16 5287713177600
17 70734282393600
18 1480103564083200
19 22376988058521600
20 519000166327910400
21 8752948036761600000
22 222845873874075648000
23 4148476779335454720000

List of values

[0, 0, 2, 3, 16, 50, 368, 1764, 16896, 109584, 1297152, 10628640, 149944320, 1486442880, 24349317120, 283465647360, 5287713177600, 70734282393600, 1480103564083200, 22376988058521600, 519000166327910400, 8752948036761600000, 222845873874075648000, 4148476779335454720000]

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

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