A195605 - cp's OEIS frontend

A195605 a(n) = (4n(n+2)+(-1)^n+1)/2 + 1.

n	a(n)
0	2
1	7
2	18
3	31
4	50
5	71
6	98
7	127
8	162
9	199
10	242
11	287
12	338
13	391
14	450
15	511
16	578
17	647
18	722
19	799
20	882
21	967
22	1058
23	1151
24	1250
25	1351
26	1458
27	1567
28	1682
29	1799
30	1922
31	2047
32	2178
33	2311
34	2450
35	2591
36	2738
37	2887
38	3042
39	3199
40	3362
41	3527
42	3698
43	3871
44	4050
45	4231
46	4418
47	4607
48	4802

[2, 7, 18, 31, 50, 71, 98, 127, 162, 199, 242, 287, 338, 391, 450, 511, 578, 647, 722, 799, 882, 967, 1058, 1151, 1250, 1351, 1458, 1567, 1682, 1799, 1922, 2047, 2178, 2311, 2450, 2591, 2738, 2887, 3042, 3199, 3362, 3527, 3698, 3871, 4050, 4231, 4418, 4607, 4802]

cp's OEIS Frontend

A195605 a(n) = (4n(n+2)+(-1)^n+1)/2 + 1.

Table of values

List of values

cp's OEIS Frontend

A195605 a(n) = (4*n*(n+2)+(-1)^n+1)/2 + 1.

Table of values

List of values

A195605 a(n) = (4n(n+2)+(-1)^n+1)/2 + 1.