Powers of fourth root of 7 rounded down.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =11a(6) =18a(7) =30a(8) =49a(9) =79a(10) =129a(11) =210a(12) =343a(13) =557a(14) =907a(15) =1476a(16) =2401a(17) =3905a(18) =6352a(19) =10332a(20) =16807a(21) =27337a(22) =44467a(23) =72329a(24) =117649a(25) =191365a(26) =311269a(27) =506304a(28) =823543a(29) =1339555