A089671 - cp's OEIS frontend

A089671 a(n) = S3(n,3), where S3(n, t) = Sum_{k=0..n} k^t *(Sum_{j=0..k} binomial(n,j))^3.

n	a(n)
0	0
1	8
2	539
3	16632
4	364042
5	6510160
6	101817234
7	1447146512
8	19144522160
9	239513659776
10	2865559784050
11	33052451375152
12	369790434398988
13	4031805422883680
14	42996629236138928
15	449821323139340160
16	4627609615665499456
17	46907404618252667392
18	469254490696475078130

[0, 8, 539, 16632, 364042, 6510160, 101817234, 1447146512, 19144522160, 239513659776, 2865559784050, 33052451375152, 369790434398988, 4031805422883680, 42996629236138928, 449821323139340160, 4627609615665499456, 46907404618252667392, 469254490696475078130]

cp's OEIS Frontend

A089671 a(n) = S3(n,3), where S3(n, t) = Sum_{k=0..n} k^t *(Sum_{j=0..k} binomial(n,j))^3.

Table of values

List of values