Fibonacci sequence beginning 4,9.

Terms

a(0) =4a(1) =9a(2) =13a(3) =22a(4) =35a(5) =57a(6) =92a(7) =149a(8) =241a(9) =390a(10) =631a(11) =1021a(12) =1652a(13) =2673a(14) =4325a(15) =6998a(16) =11323a(17) =18321a(18) =29644a(19) =47965a(20) =77609a(21) =125574a(22) =203183a(23) =328757a(24) =531940a(25) =860697a(26) =1392637a(27) =2253334a(28) =3645971a(29) =5899305