a(n) = Lucas(n) + 6.

Terms

a(0) =7a(1) =9a(2) =10a(3) =13a(4) =17a(5) =24a(6) =35a(7) =53a(8) =82a(9) =129a(10) =205a(11) =328a(12) =527a(13) =849a(14) =1370a(15) =2213a(16) =3577a(17) =5784a(18) =9355a(19) =15133a(20) =24482a(21) =39609a(22) =64085a(23) =103688a(24) =167767a(25) =271449a(26) =439210a(27) =710653a(28) =1149857a(29) =1860504