Constant term in the expansion of (Product_{k=1..n} (1 + x_k) + Product_{k=1..n} (1 + 1/x_k))^n.
A328812
Constant term in the expansion of (Product_{k=1..n} (1 + x_k) + Product_{k=1..n} (1 + 1/x_k))^n.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =164a(4) =9826a(5) =2031252a(6) =1622278624
External references
- oeis: A328812