Fibonacci sequence beginning 11, 9.

Terms

a(0) =11a(1) =9a(2) =20a(3) =29a(4) =49a(5) =78a(6) =127a(7) =205a(8) =332a(9) =537a(10) =869a(11) =1406a(12) =2275a(13) =3681a(14) =5956a(15) =9637a(16) =15593a(17) =25230a(18) =40823a(19) =66053a(20) =106876a(21) =172929a(22) =279805a(23) =452734a(24) =732539a(25) =1185273a(26) =1917812a(27) =3103085a(28) =5020897a(29) =8123982