A271535 - cp's OEIS frontend

A271535 a(n) = ( n(n + 1)(2*n + 1)/6 )^2.

n	a(n)
0	0
1	1
2	25
3	196
4	900
5	3025
6	8281
7	19600
8	41616
9	81225
10	148225
11	256036
12	422500
13	670761
14	1030225
15	1537600
16	2238016
17	3186225
18	4447881
19	6100900
20	8236900
21	10962721
22	14402025
23	18696976
24	24010000
25	30525625
26	38452401
27	48024900
28	59505796
29	73188025
30	89397025
31	108493056

[0, 1, 25, 196, 900, 3025, 8281, 19600, 41616, 81225, 148225, 256036, 422500, 670761, 1030225, 1537600, 2238016, 3186225, 4447881, 6100900, 8236900, 10962721, 14402025, 18696976, 24010000, 30525625, 38452401, 48024900, 59505796, 73188025, 89397025, 108493056]

cp's OEIS Frontend

A271535 a(n) = ( n(n + 1)(2*n + 1)/6 )^2.

Table of values

List of values

cp's OEIS Frontend

A271535 a(n) = ( n*(n + 1)*(2*n + 1)/6 )^2.

Table of values

List of values

A271535 a(n) = ( n(n + 1)(2*n + 1)/6 )^2.