Row sums of A181512.

Terms

a(0) =1a(1) =2a(2) =5a(3) =19a(4) =81a(5) =436a(6) =2659a(7) =18929a(8) =151961a(9) =1372006a(10) =13727751a(11) =151082317a(12) =1813127521a(13) =23572305056a(14) =330015348125