Fibonacci sequence beginning 3, 13.

Terms

a(0) =3a(1) =13a(2) =16a(3) =29a(4) =45a(5) =74a(6) =119a(7) =193a(8) =312a(9) =505a(10) =817a(11) =1322a(12) =2139a(13) =3461a(14) =5600a(15) =9061a(16) =14661a(17) =23722a(18) =38383a(19) =62105a(20) =100488a(21) =162593a(22) =263081a(23) =425674a(24) =688755a(25) =1114429a(26) =1803184a(27) =2917613a(28) =4720797a(29) =7638410