a(n) = 8*Lucas(n).

Terms

a(0) =16a(1) =8a(2) =24a(3) =32a(4) =56a(5) =88a(6) =144a(7) =232a(8) =376a(9) =608a(10) =984a(11) =1592a(12) =2576a(13) =4168a(14) =6744a(15) =10912a(16) =17656a(17) =28568a(18) =46224a(19) =74792a(20) =121016a(21) =195808a(22) =316824a(23) =512632a(24) =829456a(25) =1342088a(26) =2171544a(27) =3513632a(28) =5685176a(29) =9198808