Row sums of triangular array A122930.

Terms

a(0) =1a(1) =2a(2) =7a(3) =18a(4) =50a(5) =132a(6) =351a(7) =924a(8) =2431a(9) =6380a(10) =16732a(11) =43848a(12) =114869a(13) =300846a(14) =787815a(15) =2062830a(16) =5401054a(17) =14140940a(18) =37022755a(19) =96928920a(20) =253766591a(21) =664375032a(22) =1739365272a(23) =4553731728a(24) =11921847625a(25) =31211839802a(26) =81713718151a(27) =213929389674