Row sums of A124576.

Terms

a(0) =1a(1) =2a(2) =8a(3) =40a(4) =212a(5) =1152a(6) =6360a(7) =35520a(8) =200132a(9) =1135456a(10) =6478088a(11) =37128896a(12) =213617704a(13) =1233014720a(14) =7136819376a(15) =41408161920a(16) =240758343684