A006331 - cp's OEIS frontend

A006331 a(n) = n(n+1)(2*n+1)/3.

n	a(n)
0	0
1	2
2	10
3	28
4	60
5	110
6	182
7	280
8	408
9	570
10	770
11	1012
12	1300
13	1638
14	2030
15	2480
16	2992
17	3570
18	4218
19	4940
20	5740
21	6622
22	7590
23	8648
24	9800
25	11050
26	12402
27	13860
28	15428
29	17110
30	18910
31	20832
32	22880
33	25058
34	27370
35	29820
36	32412
37	35150
38	38038
39	41080
40	44280

[0, 2, 10, 28, 60, 110, 182, 280, 408, 570, 770, 1012, 1300, 1638, 2030, 2480, 2992, 3570, 4218, 4940, 5740, 6622, 7590, 8648, 9800, 11050, 12402, 13860, 15428, 17110, 18910, 20832, 22880, 25058, 27370, 29820, 32412, 35150, 38038, 41080, 44280]

cp's OEIS Frontend

A006331 a(n) = n(n+1)(2*n+1)/3.

Table of values

List of values

cp's OEIS Frontend

A006331 a(n) = n*(n+1)*(2*n+1)/3.

Table of values

List of values

A006331 a(n) = n(n+1)(2*n+1)/3.