A103220 - cp's OEIS frontend

A103220 a(n) = n(n+1)(3*n^2+n-1)/6.

n	a(n)
0	0
1	1
2	13
3	58
4	170
5	395
6	791
7	1428
8	2388
9	3765
10	5665
11	8206
12	11518
13	15743
14	21035
15	27560
16	35496
17	45033
18	56373
19	69730
20	85330
21	103411
22	124223
23	148028
24	175100
25	205725
26	240201
27	278838
28	321958
29	369895
30	422995
31	481616
32	546128
33	616913
34	694365
35	778890

[0, 1, 13, 58, 170, 395, 791, 1428, 2388, 3765, 5665, 8206, 11518, 15743, 21035, 27560, 35496, 45033, 56373, 69730, 85330, 103411, 124223, 148028, 175100, 205725, 240201, 278838, 321958, 369895, 422995, 481616, 546128, 616913, 694365, 778890]

cp's OEIS Frontend

A103220 a(n) = n(n+1)(3*n^2+n-1)/6.

Table of values

List of values

cp's OEIS Frontend

A103220 a(n) = n*(n+1)*(3*n^2+n-1)/6.

Table of values

List of values

A103220 a(n) = n(n+1)(3*n^2+n-1)/6.