A156340 - cp's OEIS frontend

A156340 G.f.: A(x) = exp( Sum_{n>=1} 2^(n^2-n+1) * x^n/n ), a power series in x with integer coefficients.

n	a(n)
0	1
1	2
2	6
3	52
4	2150
5	423804
6	358766428
7	1257303170984
8	18016913850523398
9	1049450810327077624300
10	247590106794776589832254260
11	236013988752078034604114551553880
12	907420117150975291421488593816623266780
13	14052902173791695936955751957273562543384799320

[1, 2, 6, 52, 2150, 423804, 358766428, 1257303170984, 18016913850523398, 1049450810327077624300, 247590106794776589832254260, 236013988752078034604114551553880, 907420117150975291421488593816623266780, 14052902173791695936955751957273562543384799320]

cp's OEIS Frontend

A156340 G.f.: A(x) = exp( Sum_{n>=1} 2^(n^2-n+1) * x^n/n ), a power series in x with integer coefficients.

Table of values

List of values