Row sums of triangle A113647.

Terms

a(0) =1a(1) =4a(2) =21a(3) =124a(4) =773a(5) =4988a(6) =33029a(7) =223228a(8) =1533957a(9) =10686460a(10) =75309061a(11) =535920636a(12) =3845881861a(13) =27800469500a(14) =202244161541