A325656 - cp's OEIS frontend

A325656 a(n) = (1/24)n((4n + 3)(2n^2 + 1) - 3(-1)^n).

n	a(n)
0	0
1	1
2	8
3	36
4	104
5	245
6	492
7	896
8	1504
9	2385
10	3600
11	5236
12	7368
13	10101
14	13524
15	17760
16	22912
17	29121
18	36504
19	45220
20	55400
21	67221
22	80828
23	96416
24	114144
25	134225
26	156832
27	182196
28	210504
29	242005
30	276900
31	315456
32	357888
33	404481
34	455464
35	511140
36	571752
37	637621
38	709004
39	786240

[0, 1, 8, 36, 104, 245, 492, 896, 1504, 2385, 3600, 5236, 7368, 10101, 13524, 17760, 22912, 29121, 36504, 45220, 55400, 67221, 80828, 96416, 114144, 134225, 156832, 182196, 210504, 242005, 276900, 315456, 357888, 404481, 455464, 511140, 571752, 637621, 709004, 786240]

cp's OEIS Frontend

A325656 a(n) = (1/24)n((4n + 3)(2n^2 + 1) - 3(-1)^n).

Table of values

List of values

cp's OEIS Frontend

A325656 a(n) = (1/24)*n*((4*n + 3)*(2*n^2 + 1) - 3*(-1)^n).

Table of values

List of values

A325656 a(n) = (1/24)n((4n + 3)(2n^2 + 1) - 3(-1)^n).