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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.

A194957 E.g.f. satisfies: A(x) = cos(x) + x*A(x)^2.

Table of values

n a(n)
0 1
1 1
2 3
3 24
4 265
5 3880
6 71099
7 1568896
8 40538065
9 1201214592
10 40167734579
11 1496537977088
12 61482321148249
13 2761475028475904
14 134626530031186283
15 7080317004476928000
16 399585298475488156321
17 24087998749960900673536
18 1544790381323645227703651

List of values

[1, 1, 3, 24, 265, 3880, 71099, 1568896, 40538065, 1201214592, 40167734579, 1496537977088, 61482321148249, 2761475028475904, 134626530031186283, 7080317004476928000, 399585298475488156321, 24087998749960900673536, 1544790381323645227703651]

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

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