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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.

A379173 G.f. A(x) satisfies A(x) = (1 + x)/(1 - x*A(x))^2.

Table of values

n a(n)
0 1
1 3
2 11
3 53
4 284
5 1630
6 9794
7 60830
8 387390
9 2515892
10 16599051
11 110943779
12 749603067
13 5111606801
14 35133394554
15 243146923574
16 1692918638012
17 11850006727400
18 83341778073920
19 588646472669454
20 4173607638548291
21 29694593381322531
22 211941668053441490
23 1517087043428034420

List of values

[1, 3, 11, 53, 284, 1630, 9794, 60830, 387390, 2515892, 16599051, 110943779, 749603067, 5111606801, 35133394554, 243146923574, 1692918638012, 11850006727400, 83341778073920, 588646472669454, 4173607638548291, 29694593381322531, 211941668053441490, 1517087043428034420]

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

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