A002593 - cp's OEIS frontend

A002593 a(n) = n^2(2n^2 - 1); also Sum_{k=0..n-1} (2k+1)^3.

n	a(n)
0	0
1	1
2	28
3	153
4	496
5	1225
6	2556
7	4753
8	8128
9	13041
10	19900
11	29161
12	41328
13	56953
14	76636
15	101025
16	130816
17	166753
18	209628
19	260281
20	319600
21	388521
22	468028
23	559153
24	662976
25	780625
26	913276
27	1062153
28	1228528
29	1413721
30	1619100
31	1846081

[0, 1, 28, 153, 496, 1225, 2556, 4753, 8128, 13041, 19900, 29161, 41328, 56953, 76636, 101025, 130816, 166753, 209628, 260281, 319600, 388521, 468028, 559153, 662976, 780625, 913276, 1062153, 1228528, 1413721, 1619100, 1846081]

cp's OEIS Frontend

A002593 a(n) = n^2(2n^2 - 1); also Sum_{k=0..n-1} (2k+1)^3.

Table of values

List of values

cp's OEIS Frontend

A002593 a(n) = n^2*(2*n^2 - 1); also Sum_{k=0..n-1} (2k+1)^3.

Table of values

List of values

A002593 a(n) = n^2(2n^2 - 1); also Sum_{k=0..n-1} (2k+1)^3.