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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.

A378786 G.f. A(x) satisfies A(x) = 1 + x * (1+x)^2 * A(x)^4.

Table of values

n a(n)
0 1
1 1
2 6
3 39
4 296
5 2435
6 21138
7 190603
8 1767968
9 16761424
10 161697576
11 1582171216
12 15664531716
13 156637712953
14 1579664567130
15 16048129755157
16 164085811289360
17 1687224436103842
18 17436287104620980
19 181001686332329224
20 1886522317836670988
21 19734386503541838083

List of values

[1, 1, 6, 39, 296, 2435, 21138, 190603, 1767968, 16761424, 161697576, 1582171216, 15664531716, 156637712953, 1579664567130, 16048129755157, 164085811289360, 1687224436103842, 17436287104620980, 181001686332329224, 1886522317836670988, 19734386503541838083]

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

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