A195734 - cp's OEIS frontend

A195734 G.f.: exp( Sum_{n>=1} (2sigma(n^2) - sigma(n)^2) x^n/n ).

n	a(n)
0	1
1	1
2	3
3	6
4	11
5	22
6	40
7	72
8	123
9	215
10	363
11	605
12	991
13	1618
14	2598
15	4139
16	6537
17	10229
18	15871
19	24476
20	37487
21	56995
22	86177
23	129531
24	193662
25	287992
26	426254
27	627841
28	920708
29	1344331
30	1954987
31	2831688
32	4086168
33	5875087
34	8417724
35	12020250
36	17108958
37	24275947
38	34340966

[1, 1, 3, 6, 11, 22, 40, 72, 123, 215, 363, 605, 991, 1618, 2598, 4139, 6537, 10229, 15871, 24476, 37487, 56995, 86177, 129531, 193662, 287992, 426254, 627841, 920708, 1344331, 1954987, 2831688, 4086168, 5875087, 8417724, 12020250, 17108958, 24275947, 34340966]

cp's OEIS Frontend

A195734 G.f.: exp( Sum_{n>=1} (2sigma(n^2) - sigma(n)^2) x^n/n ).

Table of values

List of values

cp's OEIS Frontend

A195734 G.f.: exp( Sum_{n>=1} (2*sigma(n^2) - sigma(n)^2) * x^n/n ).

Table of values

List of values

A195734 G.f.: exp( Sum_{n>=1} (2sigma(n^2) - sigma(n)^2) x^n/n ).