a(n) = greatest number in row n of array T given by A027948.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =7a(5) =14a(6) =25a(7) =46a(8) =97a(9) =189a(10) =344a(11) =674a(12) =1383a(13) =2683a(14) =4950a(15) =9955a(16) =20175a(17) =39130a(18) =72905a(19) =148487a(20) =298925a(21) =580328a(22) =1089343a(23) =2233409a(24) =4478413a(25) =8705686a(26) =16438345a(27) =33822205a(28) =67650909a(29) =131688362