Row sums of A321627.

Terms

a(0) =1a(1) =2a(2) =8a(3) =44a(4) =308a(5) =2660a(6) =27764a(7) =343604a(8) =4948196a(9) =81477188a(10) =1510645556a(11) =31133831540a(12) =705725536868