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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.

A265266 G.f. A(x) satisfies: A(x) = Sum_{n=-oo..+oo} x^n * (A(x) - x^n)^(2*n).

Table of values

n a(n)
0 1
1 2
2 5
3 27
4 143
5 833
6 5198
7 33607
8 223627
9 1522249
10 10546221
11 74119591
12 527150783
13 3786896705
14 27437431852
15 200267244944
16 1471209231873
17 10869315344076
18 80707738490984
19 601977204069443
20 4508156389422426
21 33884634730883602
22 255532279985062648
23 1932864141175160374
24 14660843479381675987
25 111486308441258038306
26 849773662058395948696
27 6491244696415245552638
28 49685280480631490670702
29 381014689125058139363522
30 2926949265189880054761750

List of values

[1, 2, 5, 27, 143, 833, 5198, 33607, 223627, 1522249, 10546221, 74119591, 527150783, 3786896705, 27437431852, 200267244944, 1471209231873, 10869315344076, 80707738490984, 601977204069443, 4508156389422426, 33884634730883602, 255532279985062648, 1932864141175160374, 14660843479381675987, 111486308441258038306, 849773662058395948696, 6491244696415245552638, 49685280480631490670702, 381014689125058139363522, 2926949265189880054761750]

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