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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.

A215882 Expansion of e.g.f.: -LambertW(-x) / LambertW(x).

Table of values

n a(n)
0 1
1 2
2 4
3 26
4 160
5 2002
6 21184
7 395866
8 5980160
9 149083874
10 2933576704
11 91549564570
12 2222207205376
13 83345185392562
14 2407376957456384
15 105482963294851418
16 3534260251308064768
17 177194291803516980418
18 6757029862401745616896
19 381514700506253250858778

List of values

[1, 2, 4, 26, 160, 2002, 21184, 395866, 5980160, 149083874, 2933576704, 91549564570, 2222207205376, 83345185392562, 2407376957456384, 105482963294851418, 3534260251308064768, 177194291803516980418, 6757029862401745616896, 381514700506253250858778]

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

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