First column of triangle A093846.

Terms

a(0) =9a(1) =54a(2) =399a(3) =3249a(4) =27999a(5) =249999a(6) =2285713a(7) =21249999a(8) =199999999a(9) =1899999999a(10) =18181818180a(11) =174999999999