A198148 - cp's OEIS frontend

A198148 a(n) = n(n+2)(9 - 7*(-1)^n)/16.

n	a(n)
0	0
1	3
2	1
3	15
4	3
5	35
6	6
7	63
8	10
9	99
10	15
11	143
12	21
13	195
14	28
15	255
16	36
17	323
18	45
19	399
20	55
21	483
22	66
23	575
24	78
25	675
26	91
27	783
28	105
29	899
30	120
31	1023
32	136
33	1155
34	153
35	1295
36	171
37	1443
38	190
39	1599
40	210
41	1763
42	231
43	1935
44	253
45	2115
46	276
47	2303
48	300
49	2499
50	325

[0, 3, 1, 15, 3, 35, 6, 63, 10, 99, 15, 143, 21, 195, 28, 255, 36, 323, 45, 399, 55, 483, 66, 575, 78, 675, 91, 783, 105, 899, 120, 1023, 136, 1155, 153, 1295, 171, 1443, 190, 1599, 210, 1763, 231, 1935, 253, 2115, 276, 2303, 300, 2499, 325]

cp's OEIS Frontend

A198148 a(n) = n(n+2)(9 - 7*(-1)^n)/16.

Table of values

List of values

cp's OEIS Frontend

A198148 a(n) = n*(n+2)*(9 - 7*(-1)^n)/16.

Table of values

List of values

A198148 a(n) = n(n+2)(9 - 7*(-1)^n)/16.