Row sums of triangle A128592.

Terms

a(0) =1a(1) =2a(2) =5a(3) =26a(4) =189a(5) =1734a(6) =19305a(7) =253370a(8) =3828825a(9) =65473006a(10) =1249937325a(11) =26352843470a(12) =608142583125