Fibonacci sequence beginning 13, 8.

Terms

a(0) =13a(1) =8a(2) =21a(3) =29a(4) =50a(5) =79a(6) =129a(7) =208a(8) =337a(9) =545a(10) =882a(11) =1427a(12) =2309a(13) =3736a(14) =6045a(15) =9781a(16) =15826a(17) =25607a(18) =41433a(19) =67040a(20) =108473a(21) =175513a(22) =283986a(23) =459499a(24) =743485a(25) =1202984a(26) =1946469a(27) =3149453a(28) =5095922a(29) =8245375