Sort then Add, a(1)=7.

Terms

a(0) =7a(1) =14a(2) =28a(3) =56a(4) =112a(5) =224a(6) =448a(7) =896a(8) =1585a(9) =3143a(10) =4477a(11) =8954a(12) =13543a(13) =26888a(14) =53776a(15) =89453a(16) =124042a(17) =136286a(18) =259954a(19) =505553a(20) =541108a(21) =552566a(22) =808132a(23) =820520a(24) =822778a(25) =1050566a(26) =1066132a(27) =1178498a(28) =2326387a(29) =4560065