Row sums of triangle A128567.

Terms

a(0) =1a(1) =3a(2) =12a(3) =60a(4) =315a(5) =1869a(6) =11472a(7) =74797a(8) =502908a(9) =3505031a(10) =24973089a(11) =182208083a(12) =1352620790a(13) =10207771213a(14) =78082422354a(15) =604699597868