A156304 - cp's OEIS frontend

A156304 G.f.: A(x) = exp( Sum_{n>=1} sigma(n^3)*x^n/n ), a power series in x with integer coefficients.

n	a(n)
0	1
1	1
2	8
3	21
4	77
5	199
6	661
7	1663
8	4852
9	12382
10	33289
11	82877
12	213026
13	518109
14	1279852
15	3053404
16	7312985
17	17093793
18	39952528
19	91661695
20	209709116
21	473095589
22	1062567288
23	2359804486
24	5214774263
25	11415904502
26	24860918943
27	53709881911

[1, 1, 8, 21, 77, 199, 661, 1663, 4852, 12382, 33289, 82877, 213026, 518109, 1279852, 3053404, 7312985, 17093793, 39952528, 91661695, 209709116, 473095589, 1062567288, 2359804486, 5214774263, 11415904502, 24860918943, 53709881911]

cp's OEIS Frontend

A156304 G.f.: A(x) = exp( Sum_{n>=1} sigma(n^3)*x^n/n ), a power series in x with integer coefficients.

Table of values

List of values