Sums of the rows in A362034.

Terms

a(0) =2a(1) =4a(2) =9a(3) =18a(4) =43a(5) =88a(6) =183a(7) =370a(8) =761a(9) =1536a(10) =3081a(11) =6202a(12) =12427a(13) =24908a(14) =49875a(15) =99834a(16) =199769a(17) =399572a(18) =799289a(19) =1598726a(20) =3197557a(21) =6395400a(22) =12791045a(23) =25582310a(24) =51164767a(25) =102329800a(26) =204659929a(27) =409320270a(28) =818640731a(29) =1637281876