A328809 - cp's OEIS frontend

A328809 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	3
2	39
3	597
4	11991
5	260613
6	6129489
7	151078707
8	3867441111
9	101852866533
10	2744610170049
11	75348380209347
12	2100889194001761
13	59349600029522403
14	1695505948476461559
15	48909452234258070117
16	1422877722974198091351
17	41704912707174877940613

[1, 3, 39, 597, 11991, 260613, 6129489, 151078707, 3867441111, 101852866533, 2744610170049, 75348380209347, 2100889194001761, 59349600029522403, 1695505948476461559, 48909452234258070117, 1422877722974198091351, 41704912707174877940613]

cp's OEIS Frontend

A328809 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