A328714 - cp's OEIS frontend

A328714 Constant term in the expansion of (1 + w + x + y + z + 1/w + 1/x + 1/y + 1/z)^n.

n	a(n)
0	1
1	1
2	9
3	25
4	217
5	921
6	7761
7	41889
8	345465
9	2162617
10	17605249
11	121120209
12	980612161
13	7174425025
14	58079091513
15	442755733065
16	3595708057785
17	28197440412345
18	230133477721665
19	1841288167473105
20	15113407062476817
21	122714906949538257
22	1013127345082389513

[1, 1, 9, 25, 217, 921, 7761, 41889, 345465, 2162617, 17605249, 121120209, 980612161, 7174425025, 58079091513, 442755733065, 3595708057785, 28197440412345, 230133477721665, 1841288167473105, 15113407062476817, 122714906949538257, 1013127345082389513]

cp's OEIS Frontend

A328714 Constant term in the expansion of (1 + w + x + y + z + 1/w + 1/x + 1/y + 1/z)^n.

Table of values

List of values