A374084 - cp's OEIS frontend

A374084 a(n) = (1 + (n+1)^2 + (n-2)*(-1)^n)/2.

n	a(n)
1	3
2	5
3	8
4	14
5	17
6	27
7	30
8	44
9	47
10	65
11	68
12	90
13	93
14	119
15	122
16	152
17	155
18	189
19	192
20	230
21	233
22	275
23	278
24	324
25	327
26	377
27	380
28	434
29	437
30	495
31	498
32	560
33	563
34	629
35	632
36	702
37	705
38	779
39	782
40	860
41	863
42	945
43	948
44	1034
45	1037
46	1127
47	1130
48	1224
49	1227
50	1325
51	1328
52	1430
53	1433
54	1539

[3, 5, 8, 14, 17, 27, 30, 44, 47, 65, 68, 90, 93, 119, 122, 152, 155, 189, 192, 230, 233, 275, 278, 324, 327, 377, 380, 434, 437, 495, 498, 560, 563, 629, 632, 702, 705, 779, 782, 860, 863, 945, 948, 1034, 1037, 1127, 1130, 1224, 1227, 1325, 1328, 1430, 1433, 1539]

cp's OEIS Frontend

A374084 a(n) = (1 + (n+1)^2 + (n-2)*(-1)^n)/2.

Table of values

List of values