Constant term in the expansion of ((Sum_{k=-3..3} x^k) * (Sum_{k=-3..3} y^k) - (Sum_{k=-2..2} x^k) * (Sum_{k=-2..2} y^k))^n.
A329077
Constant term in the expansion of ((Sum_{k=-3..3} x^k) * (Sum_{k=-3..3} y^k) - (Sum_{k=-2..2} x^k) * (Sum_{k=-2..2} y^k))^n.
Terms
- a(0) =1a(1) =0a(2) =24a(3) =72a(4) =3336a(5) =34800a(6) =912840a(7) =15661520a(8) =355423880a(9) =7241240160a(10) =160151370624
External references
- oeis: A329077