Sort then Add, a(1)=17.

Terms

a(0) =17a(1) =34a(2) =68a(3) =136a(4) =272a(5) =499a(6) =998a(7) =1897a(8) =3686a(9) =7354a(10) =10811a(11) =11929a(12) =23228a(13) =45466a(14) =90032a(15) =90271a(16) =91550a(17) =93109a(18) =94508a(19) =99097a(20) =107096a(21) =108775a(22) =124553a(23) =248008a(24) =250496a(25) =275065a(26) =300632a(27) =302968a(28) =326657a(29) =562324