A156217 - cp's OEIS frontend

A156217 G.f.: A(x) = exp( Sum_{n>=1} sigma(n)^n*x^n/n ), a power series in x with integer coefficients.

n	a(n)
0	1
1	1
2	5
3	26
4	634
5	2273
6	502568
7	821149
8	323391480
9	1514316108
10	360153555251
11	440146271717
12	19353735645240631
13	19423959923754863
14	1599762850473552085
15	35664862808194240282
16	45517618403498070780338
17	45844669861151626268272

[1, 1, 5, 26, 634, 2273, 502568, 821149, 323391480, 1514316108, 360153555251, 440146271717, 19353735645240631, 19423959923754863, 1599762850473552085, 35664862808194240282, 45517618403498070780338, 45844669861151626268272]

cp's OEIS Frontend

A156217 G.f.: A(x) = exp( Sum_{n>=1} sigma(n)^n*x^n/n ), a power series in x with integer coefficients.

Table of values

List of values