Row sums of A094615.

Terms

a(0) =1a(1) =8a(2) =35a(3) =126a(4) =417a(5) =1324a(6) =4111a(7) =12602a(8) =38333a(9) =116040a(10) =350187a(11) =1054678a(12) =3172249a(13) =9533156a(14) =28632263a(15) =85962354a(16) =258018165a(17) =774316672a(18) =2323474339a(19) =6971471630a(20) =20916512081a(21) =62753730588a(22) =188269580415a(23) =564825518506