a(n) = 6^(n-1)*J(n), where J(n) = A001045(n).

A099138

a(n) = 6^(n-1)*J(n), where J(n) = A001045(n).

Terms

    a(0) =0a(1) =1a(2) =6a(3) =108a(4) =1080a(5) =14256a(6) =163296a(7) =2006208a(8) =23794560a(9) =287214336a(10) =3436494336a(11) =41298398208a(12) =495217981440

External references