Row sums of A059720.

Terms

a(0) =1a(1) =1a(2) =3a(3) =13a(4) =69a(5) =457a(6) =3579a(7) =32521a(8) =335853a(9) =3888823a(10) =49902045a(11) =703123621a(12) =10793341131a(13) =179315984983