Fibonacci sequence beginning 3, 17.

Terms

a(0) =3a(1) =17a(2) =20a(3) =37a(4) =57a(5) =94a(6) =151a(7) =245a(8) =396a(9) =641a(10) =1037a(11) =1678a(12) =2715a(13) =4393a(14) =7108a(15) =11501a(16) =18609a(17) =30110a(18) =48719a(19) =78829a(20) =127548a(21) =206377a(22) =333925a(23) =540302a(24) =874227a(25) =1414529a(26) =2288756a(27) =3703285a(28) =5992041a(29) =9695326