Row sums of A102416.

Terms

a(0) =2a(1) =2a(2) =6a(3) =20a(4) =38a(5) =78a(6) =160a(7) =316a(8) =644a(9) =1296a(10) =2578a(11) =5186a(12) =10368a(13) =20744a(14) =41532a(15) =83076a(16) =166172a(17) =332364a(18) =664864a(19) =1329768a(20) =2659656a(21) =5319504