Constant term in the expansion of (-2 + (1 + w) * (1 + x) * (1 + y) * (1 + z) + (1 + 1/w) * (1 + 1/x) * (1 + 1/y) * (1 + 1/z))^n.

A328751

Constant term in the expansion of (-2 + (1 + w) * (1 + x) * (1 + y) * (1 + z) + (1 + 1/w) * (1 + 1/x) * (1 + 1/y) * (1 + 1/z))^n.

Terms

    a(0) =1a(1) =0a(2) =30a(3) =300a(4) =6690a(5) =124920a(6) =2778600a(7) =61790400a(8) =1452751650a(9) =34806097200a(10) =855836532180

External references