A171191 - cp's OEIS frontend

A171191 G.f. satisfies: A(x) = exp( Sum_{n>=1} [A(x)^n + 1/A(-x)^n]*x^n/n ).

n	a(n)
0	1
1	2
2	7
3	20
4	73
5	263
6	1111
7	4451
8	20161
9	85304
10	401401
11	1755593
12	8465311
13	37866818
14	185756605
15	844627115
16	4196759383
17	19321634594
18	96962969047
19	450810982796
20	2280344734891
21	10686378006479
22	54406554842287
23	256637809742444

[1, 2, 7, 20, 73, 263, 1111, 4451, 20161, 85304, 401401, 1755593, 8465311, 37866818, 185756605, 844627115, 4196759383, 19321634594, 96962969047, 450810982796, 2280344734891, 10686378006479, 54406554842287, 256637809742444]

cp's OEIS Frontend

A171191 G.f. satisfies: A(x) = exp( Sum_{n>=1} [A(x)^n + 1/A(-x)^n]*x^n/n ).

Table of values

List of values