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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.

A380020 Expansion of e.g.f. 1/sqrt(exp(-2*x) - 2*x*exp(-x)).

Table of values

n a(n)
0 1
1 2
2 8
3 55
4 540
5 6861
6 106828
7 1968443
8 41884496
9 1010558161
10 27259824996
11 812935829355
12 26556802948624
13 943118750625377
14 36176486632451012
15 1490585029223430691
16 65656827447552549504
17 3078782615385684631809
18 153127047650469476373316

List of values

[1, 2, 8, 55, 540, 6861, 106828, 1968443, 41884496, 1010558161, 27259824996, 812935829355, 26556802948624, 943118750625377, 36176486632451012, 1490585029223430691, 65656827447552549504, 3078782615385684631809, 153127047650469476373316]

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

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