Row sums of A283838.

Terms

a(0) =1a(1) =3a(2) =6a(3) =12a(4) =24a(5) =42a(6) =76a(7) =136a(8) =240a(9) =424a(10) =753a(11) =1337a(12) =2388a(13) =4280a(14) =7706a(15) =13940a(16) =25332a(17) =46224a(18) =84696a(19) =155786a(20) =287574a(21) =532624a(22) =989554a(23) =1843744a(24) =3444389a(25) =6450369a(26) =12107004a(27) =22771642a(28) =42913116a(29) =81014528