a(n) = floor(8^n/(1+2*sin(6*Pi/13)/(2*sin(Pi/13)))^n).

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =9a(6) =14a(7) =21a(8) =34a(9) =52a(10) =82a(11) =127a(12) =198a(13) =308a(14) =478a(15) =744a(16) =1156a(17) =1796a(18) =2792a(19) =4339a(20) =6742a(21) =10477a(22) =16282a(23) =25302a(24) =39318a(25) =61100a(26) =94947a(27) =147545a(28) =229281a(29) =356295