A202993 - cp's OEIS frontend

A202993 G.f.: A(x) = exp( Sum_{n>=1} sigma(n^4)*x^n/n ), a power series in x with integer coefficients.

n	a(n)
0	1
1	1
2	16
3	56
4	296
5	1052
6	4952
7	17292
8	70512
9	249712
10	931226
11	3212690
12	11399590
13	38331770
14	130310820
15	428389292
16	1408697596
17	4524980036
18	14486512316
19	45558807176
20	142488702483
21	439559056419
22	1347096766984
23	4082169772704
24	12286806024269
25	36629267989081

[1, 1, 16, 56, 296, 1052, 4952, 17292, 70512, 249712, 931226, 3212690, 11399590, 38331770, 130310820, 428389292, 1408697596, 4524980036, 14486512316, 45558807176, 142488702483, 439559056419, 1347096766984, 4082169772704, 12286806024269, 36629267989081]

cp's OEIS Frontend

A202993 G.f.: A(x) = exp( Sum_{n>=1} sigma(n^4)*x^n/n ), a power series in x with integer coefficients.

Table of values

List of values