Sum_{k=1,...,2n} (-1)^k binomial(8*n,4*k).
A232719
Sum_{k=1,...,2n} (-1)^k binomial(8*n,4*k).
Terms
- a(0) =-69a(1) =9231a(2) =-1254465a(3) =170459391a(4) =-23162405889
External references
- oeis: A232719
A232719
Sum_{k=1,...,2n} (-1)^k binomial(8*n,4*k).