A163318 - cp's OEIS frontend

A163318 Expansion of g.f.: Product_{k>=1} 1+k*x^k/(1-x^k)^2.

n	a(n)
0	1
1	1
2	4
3	8
4	19
5	36
6	76
7	142
8	272
9	496
10	900
11	1592
12	2784
13	4792
14	8138
15	13688
16	22703
17	37380
18	60838
19	98310
20	157298
21	250162
22	394332
23	618032
24	961512
25	1487563
26	2286610
27	3496776
28	5316666
29	8044598
30	12110538
31	18147166
32	27068692
33	40203306
34	59459998
35	87587428
36	128522850

[1, 1, 4, 8, 19, 36, 76, 142, 272, 496, 900, 1592, 2784, 4792, 8138, 13688, 22703, 37380, 60838, 98310, 157298, 250162, 394332, 618032, 961512, 1487563, 2286610, 3496776, 5316666, 8044598, 12110538, 18147166, 27068692, 40203306, 59459998, 87587428, 128522850]

cp's OEIS Frontend

A163318 Expansion of g.f.: Product_{k>=1} 1+k*x^k/(1-x^k)^2.

Table of values

List of values