Sums of rows of triangle in A077385.

Terms

a(0) =1a(1) =4a(2) =17a(3) =106a(4) =937a(5) =10886a(6) =156865a(7) =2696338a(8) =53808401a(9) =1222222222a(10) =31124909521a(11) =878100801722