A325517 - cp's OEIS frontend

A325517 a(n) = n((2n + 1)(2n^2 + 2n + 3) - 3(-1)^n)/24.

n	a(n)
0	0
1	1
2	6
3	24
4	64
5	145
6	282
7	504
8	832
9	1305
10	1950
11	2816
12	3936
13	5369
14	7154
15	9360
16	12032
17	15249
18	19062
19	23560
20	28800
21	34881
22	41866
23	49864
24	58944
25	69225
26	80782
27	93744
28	108192
29	124265
30	142050
31	161696
32	183296
33	207009
34	232934
35	261240
36	292032
37	325489
38	361722
39	400920
40	443200

[0, 1, 6, 24, 64, 145, 282, 504, 832, 1305, 1950, 2816, 3936, 5369, 7154, 9360, 12032, 15249, 19062, 23560, 28800, 34881, 41866, 49864, 58944, 69225, 80782, 93744, 108192, 124265, 142050, 161696, 183296, 207009, 232934, 261240, 292032, 325489, 361722, 400920, 443200]

cp's OEIS Frontend

A325517 a(n) = n((2n + 1)(2n^2 + 2n + 3) - 3(-1)^n)/24.

Table of values

List of values

cp's OEIS Frontend

A325517 a(n) = n*((2*n + 1)*(2*n^2 + 2*n + 3) - 3*(-1)^n)/24.

Table of values

List of values

A325517 a(n) = n((2n + 1)(2n^2 + 2n + 3) - 3(-1)^n)/24.