A317298 - cp's OEIS frontend

A317298 a(n) = (1/2)(1 + (-1)^n + 2n + 4*n^2).

n	a(n)
0	1
1	3
2	11
3	21
4	37
5	55
6	79
7	105
8	137
9	171
10	211
11	253
12	301
13	351
14	407
15	465
16	529
17	595
18	667
19	741
20	821
21	903
22	991
23	1081
24	1177
25	1275
26	1379
27	1485
28	1597
29	1711
30	1831
31	1953
32	2081
33	2211
34	2347
35	2485
36	2629
37	2775
38	2927
39	3081
40	3241
41	3403
42	3571
43	3741
44	3917
45	4095
46	4279
47	4465
48	4657

[1, 3, 11, 21, 37, 55, 79, 105, 137, 171, 211, 253, 301, 351, 407, 465, 529, 595, 667, 741, 821, 903, 991, 1081, 1177, 1275, 1379, 1485, 1597, 1711, 1831, 1953, 2081, 2211, 2347, 2485, 2629, 2775, 2927, 3081, 3241, 3403, 3571, 3741, 3917, 4095, 4279, 4465, 4657]

cp's OEIS Frontend

A317298 a(n) = (1/2)(1 + (-1)^n + 2n + 4*n^2).

Table of values

List of values

cp's OEIS Frontend

A317298 a(n) = (1/2)*(1 + (-1)^n + 2*n + 4*n^2).

Table of values

List of values

A317298 a(n) = (1/2)(1 + (-1)^n + 2n + 4*n^2).