A089670 - cp's OEIS frontend

A089670 a(n) = S3(n,2), 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	283
3	6044
4	101360
5	1470640
6	19361174
7	237684384
8	2768042208
9	30935313600
10	334481353690
11	3519672963752
12	36206551801264
13	365363625058432
14	3626585989411280
15	35485636769545600
16	342894590805622656
17	3276865150482420480
18	31008279252965786178

[0, 8, 283, 6044, 101360, 1470640, 19361174, 237684384, 2768042208, 30935313600, 334481353690, 3519672963752, 36206551801264, 365363625058432, 3626585989411280, 35485636769545600, 342894590805622656, 3276865150482420480, 31008279252965786178]

cp's OEIS Frontend

A089670 a(n) = S3(n,2), where S3(n, t) = Sum_{k=0..n} k^t *(Sum_{j=0..k} binomial(n,j))^3.

Table of values

List of values