Row sums of A050158.

Terms

a(0) =1a(1) =5a(2) =24a(3) =111a(4) =500a(5) =2210a(6) =9632a(7) =41531a(8) =177564a(9) =754014a(10) =3184016a(11) =13382710a(12) =56026984a(13) =233765636a(14) =972504704a(15) =4035441491a(16) =16707488684a(17) =69033916166a(18) =284733161264