a(n) = binomial(3+2*n, n) * binomial(8+2*n, 3+n).

A114059

a(n) = binomial(3+2*n, n) * binomial(8+2*n, 3+n).

Terms

    a(0) =56a(1) =1050a(2) =16632a(3) =252252a(4) =3775200a(5) =56316546a(6) =840639800a(7) =12575971408a(8) =188663555808

External references