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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.

A381600 G.f. A(x) satisfies A(x) = 1/(1 - x * A(x)^2 * A(x*A(x)^2)^2).

Table of values

n a(n)
0 1
1 1
2 5
3 39
4 383
5 4360
6 55201
7 758877
8 11157081
9 173623407
10 2838995592
11 48515016273
12 862904739711
13 15923514065053
14 304089551295359
15 5997295071211547
16 121944040723497105
17 2552667957311169834
18 54944459391676448365
19 1214747696691087352576
20 27559533140410855702244

List of values

[1, 1, 5, 39, 383, 4360, 55201, 758877, 11157081, 173623407, 2838995592, 48515016273, 862904739711, 15923514065053, 304089551295359, 5997295071211547, 121944040723497105, 2552667957311169834, 54944459391676448365, 1214747696691087352576, 27559533140410855702244]

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

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