a(n) = 3 * 2^(n-1) * a(n-1) with a(0) = 1.

A132727

a(n) = 3 * 2^(n-1) * a(n-1) with a(0) = 1.

Terms

    a(0) =1a(1) =3a(2) =18a(3) =216a(4) =5184a(5) =248832a(6) =23887872a(7) =4586471424

External references