Fibonacci sequence beginning 2, 8.

Terms

a(0) =2a(1) =8a(2) =10a(3) =18a(4) =28a(5) =46a(6) =74a(7) =120a(8) =194a(9) =314a(10) =508a(11) =822a(12) =1330a(13) =2152a(14) =3482a(15) =5634a(16) =9116a(17) =14750a(18) =23866a(19) =38616a(20) =62482a(21) =101098a(22) =163580a(23) =264678a(24) =428258a(25) =692936a(26) =1121194a(27) =1814130a(28) =2935324a(29) =4749454