Powers of fourth root of 13 rounded up.

Terms

a(0) =1a(1) =2a(2) =4a(3) =7a(4) =13a(5) =25a(6) =47a(7) =90a(8) =169a(9) =321a(10) =610a(11) =1158a(12) =2197a(13) =4172a(14) =7922a(15) =15042a(16) =28561a(17) =54233a(18) =102979a(19) =195538a(20) =371293a(21) =705022a(22) =1338716a(23) =2541993a(24) =4826809a(25) =9165285a(26) =17403308a(27) =33045904a(28) =62748517a(29) =119148699