Constant term in the expansion of (-1 + (1 + x + 1/x) * (1 + y + 1/y) * (1 + z + 1/z))^n.
A328874
Constant term in the expansion of (-1 + (1 + x + 1/x) * (1 + y + 1/y) * (1 + z + 1/z))^n.
Terms
- a(0) =1a(1) =0a(2) =26a(3) =264a(4) =5646a(5) =101520a(6) =2103740a(7) =43632960a(8) =942507790a(9) =20685977760a(10) =462661368876
External references
- oeis: A328874