A transform of A103210.

Terms

a(0) =1a(1) =3a(2) =21a(3) =162a(4) =1365a(5) =12219a(6) =114156a(7) =1100649a(8) =10871175a(9) =109438830a(10) =1118798079a(11) =11583712617a(12) =121219182504