A156334 - cp's OEIS frontend

A156334 G.f.: A(x) = exp( Sum_{n>=1} 2^[n^2/2+1]*x^n/n ), a power series in x with integer coefficients.

n	a(n)
0	1
1	2
2	6
3	20
4	166
5	1980
6	91612
7	4980968
8	1083899526
9	246514209900
10	225675208005684
11	210073940172966552
12	787481680820307364188
13	2977392786568558334126040
14	45279192083837920124027862264

[1, 2, 6, 20, 166, 1980, 91612, 4980968, 1083899526, 246514209900, 225675208005684, 210073940172966552, 787481680820307364188, 2977392786568558334126040, 45279192083837920124027862264]

cp's OEIS Frontend

A156334 G.f.: A(x) = exp( Sum_{n>=1} 2^[n^2/2+1]*x^n/n ), a power series in x with integer coefficients.

Table of values

List of values