A089672 - cp's OEIS frontend

A089672 a(n) = S3(n,4), 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	1051
3	47024
4	1343372
5	29595904
6	549599246
7	9039987264
8	135800368320
9	1901346478080
10	25165027679242
11	318105020914208
12	3870088369412824
13	45584244411107584
14	522235732874214800
15	5840992473138691072
16	63970901725419781632
17	687749464543749095424
18	7273214936974305201570

[0, 8, 1051, 47024, 1343372, 29595904, 549599246, 9039987264, 135800368320, 1901346478080, 25165027679242, 318105020914208, 3870088369412824, 45584244411107584, 522235732874214800, 5840992473138691072, 63970901725419781632, 687749464543749095424, 7273214936974305201570]

cp's OEIS Frontend

A089672 a(n) = S3(n,4), where S3(n, t) = Sum_{k=0..n} k^t *(Sum_{j=0..k} binomial(n,j))^3.

Table of values

List of values