A185301 - cp's OEIS frontend

A185301 G.f.: exp( Sum_{n>=1} Sum_{k>=1} sigma(n)^k * x^(n*k) / n ).

n	a(n)
0	1
1	1
2	3
3	5
4	14
5	20
6	59
7	83
8	229
9	350
10	878
11	1302
12	3479
13	5068
14	12640
15	19357
16	47547
17	71173
18	175029
19	262445
20	635297
21	966680
22	2288213
23	3470143
24	8266788
25	12507003
26	29283071
27	44756825
28	104067224
29	158535387
30	367088494
31	559952784
32	1287857188
33	1971948577

[1, 1, 3, 5, 14, 20, 59, 83, 229, 350, 878, 1302, 3479, 5068, 12640, 19357, 47547, 71173, 175029, 262445, 635297, 966680, 2288213, 3470143, 8266788, 12507003, 29283071, 44756825, 104067224, 158535387, 367088494, 559952784, 1287857188, 1971948577]

cp's OEIS Frontend

A185301 G.f.: exp( Sum_{n>=1} Sum_{k>=1} sigma(n)^k * x^(n*k) / n ).

Table of values

List of values