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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.

A378954 G.f. A(x) satisfies A(x) = ( 1 + x*A(x)^3/(1 + x*A(x)^2) )^2.

Table of values

n a(n)
0 1
1 2
2 11
3 82
4 705
5 6584
6 64902
7 664608
8 7001006
9 75378082
10 825810304
11 9176278104
12 103171720299
13 1171558985630
14 13416903518301
15 154784357304138
16 1797153050309355
17 20984321920535966
18 246252819129444579
19 2902768234099178002
20 34355158795966317996
21 408086199665333171952

List of values

[1, 2, 11, 82, 705, 6584, 64902, 664608, 7001006, 75378082, 825810304, 9176278104, 103171720299, 1171558985630, 13416903518301, 154784357304138, 1797153050309355, 20984321920535966, 246252819129444579, 2902768234099178002, 34355158795966317996, 408086199665333171952]

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

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