A323724 - cp's OEIS frontend

A323724 a(n) = n(2(n - 2)*n + (-1)^n + 3)/4.

n	a(n)
0	0
1	0
2	2
3	6
4	20
5	40
6	78
7	126
8	200
9	288
10	410
11	550
12	732
13	936
14	1190
15	1470
16	1808
17	2176
18	2610
19	3078
20	3620
21	4200
22	4862
23	5566
24	6360
25	7200
26	8138
27	9126
28	10220
29	11368
30	12630
31	13950
32	15392
33	16896
34	18530
35	20230
36	22068
37	23976
38	26030
39	28158
40	30440
41	32800
42	35322
43	37926
44	40700

[0, 0, 2, 6, 20, 40, 78, 126, 200, 288, 410, 550, 732, 936, 1190, 1470, 1808, 2176, 2610, 3078, 3620, 4200, 4862, 5566, 6360, 7200, 8138, 9126, 10220, 11368, 12630, 13950, 15392, 16896, 18530, 20230, 22068, 23976, 26030, 28158, 30440, 32800, 35322, 37926, 40700]

cp's OEIS Frontend

A323724 a(n) = n(2(n - 2)*n + (-1)^n + 3)/4.

Table of values

List of values

cp's OEIS Frontend

A323724 a(n) = n*(2*(n - 2)*n + (-1)^n + 3)/4.

Table of values

List of values

A323724 a(n) = n(2(n - 2)*n + (-1)^n + 3)/4.