A171272 - cp's OEIS frontend

A171272 a(n) = 1 + 4n(1 + 2*n^2)/3.

n	a(n)
0	1
1	5
2	25
3	77
4	177
5	341
6	585
7	925
8	1377
9	1957
10	2681
11	3565
12	4625
13	5877
14	7337
15	9021
16	10945
17	13125
18	15577
19	18317
20	21361
21	24725
22	28425
23	32477
24	36897
25	41701
26	46905
27	52525
28	58577
29	65077
30	72041
31	79485
32	87425
33	95877
34	104857
35	114381
36	124465
37	135125
38	146377
39	158237
40	170721
41	183845

[1, 5, 25, 77, 177, 341, 585, 925, 1377, 1957, 2681, 3565, 4625, 5877, 7337, 9021, 10945, 13125, 15577, 18317, 21361, 24725, 28425, 32477, 36897, 41701, 46905, 52525, 58577, 65077, 72041, 79485, 87425, 95877, 104857, 114381, 124465, 135125, 146377, 158237, 170721, 183845]

cp's OEIS Frontend

A171272 a(n) = 1 + 4n(1 + 2*n^2)/3.

Table of values

List of values

cp's OEIS Frontend

A171272 a(n) = 1 + 4*n*(1 + 2*n^2)/3.

Table of values

List of values

A171272 a(n) = 1 + 4n(1 + 2*n^2)/3.