a(n) = binomial(n + 4, 4) * 8^n.

A172510

a(n) = binomial(n + 4, 4) * 8^n.

Terms

    a(0) =1a(1) =40a(2) =960a(3) =17920a(4) =286720a(5) =4128768a(6) =55050240a(7) =692060160a(8) =8304721920a(9) =95965675520

External references