Row sums of A335436.

Terms

a(0) =1a(1) =7a(2) =34a(3) =150a(4) =628a(5) =2540a(6) =10024a(7) =38840a(8) =148368a(9) =560368a(10) =2096928a(11) =7786592a(12) =28726592a(13) =105390272a(14) =384788096a(15) =1398978432a(16) =5067403520a(17) =18294707968a(18) =65854095872a(19) =236421150208a(20) =846732997632