A328750 - cp's OEIS frontend

A328750 Constant term in the expansion of (-1 + (1 + w) * (1 + x) * (1 + y) * (1 + z) + (1 + 1/w) * (1 + 1/x) * (1 + 1/y) * (1 + 1/z))^n.

n	a(n)
0	1
1	1
2	31
3	391
4	8071
5	161671
6	3634921
7	84109201
8	2032357111
9	50355327991
10	1277302604521
11	32983865502721
12	864982811998801
13	22976755021842961
14	617140285389771391
15	16735405610179740151
16	457647302453165769751
17	12607719926638032161431
18	349620344754345216824041

[1, 1, 31, 391, 8071, 161671, 3634921, 84109201, 2032357111, 50355327991, 1277302604521, 32983865502721, 864982811998801, 22976755021842961, 617140285389771391, 16735405610179740151, 457647302453165769751, 12607719926638032161431, 349620344754345216824041]

cp's OEIS Frontend

A328750 Constant term in the expansion of (-1 + (1 + w) * (1 + x) * (1 + y) * (1 + z) + (1 + 1/w) * (1 + 1/x) * (1 + 1/y) * (1 + 1/z))^n.

Table of values

List of values