a(n) = Sum_{k = 0..n} binomial(n, k)^2*binomial(n+k, k)*A108625(n, n-k).

A376462

a(n) = Sum_{k = 0..n} binomial(n, k)^2*binomial(n+k, k)*A108625(n, n-k).

Terms

    a(0) =1a(1) =5a(2) =109a(3) =3317a(4) =121501a(5) =4954505a(6) =216867925a(7) =9981053045a(8) =476860000285

External references