A316962 - cp's OEIS frontend

A316962 Expansion of Product_{k>=1} (1 + sigma(k)*x^k), where sigma(k) is the sum of the divisors of k (A000203).

n	a(n)
0	1
1	1
2	3
3	7
4	11
5	25
6	51
7	87
8	129
9	286
10	462
11	760
12	1312
13	2102
14	3470
15	5988
16	8840
17	13884
18	22577
19	33545
20	55961
21	85341
22	126705
23	194317
24	293621
25	435040
26	641472
27	971503
28	1462483
29	2108161
30	3124489
31	4474579
32	6545809
33	9561923
34	13518678
35	19809034
36	28387625
37	40286631
38	57039233

[1, 1, 3, 7, 11, 25, 51, 87, 129, 286, 462, 760, 1312, 2102, 3470, 5988, 8840, 13884, 22577, 33545, 55961, 85341, 126705, 194317, 293621, 435040, 641472, 971503, 1462483, 2108161, 3124489, 4474579, 6545809, 9561923, 13518678, 19809034, 28387625, 40286631, 57039233]

cp's OEIS Frontend

A316962 Expansion of Product_{k>=1} (1 + sigma(k)*x^k), where sigma(k) is the sum of the divisors of k (A000203).

Table of values

List of values