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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.

A318003 E.g.f. A(x) satisfies: A(x) = sinh(x) + cosh(x)*A(x)^2.

Table of values

n a(n)
1 1
2 2
3 13
4 140
5 2041
6 38222
7 874693
8 23644280
9 737301361
10 26053773242
11 1028890245373
12 44906842244420
13 2146597351615081
14 111529829156824262
15 6258181131400784053
16 377167403797348584560
17 24298520283720455935201
18 1666382133585488471159282
19 121205126078549481910218733
20 9319638200814732292237048700

List of values

[1, 2, 13, 140, 2041, 38222, 874693, 23644280, 737301361, 26053773242, 1028890245373, 44906842244420, 2146597351615081, 111529829156824262, 6258181131400784053, 377167403797348584560, 24298520283720455935201, 1666382133585488471159282, 121205126078549481910218733, 9319638200814732292237048700]

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

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