Powers of fifth root of 4 rounded down.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =4a(6) =5a(7) =6a(8) =9a(9) =12a(10) =16a(11) =21a(12) =27a(13) =36a(14) =48a(15) =64a(16) =84a(17) =111a(18) =147a(19) =194a(20) =256a(21) =337a(22) =445a(23) =588a(24) =776a(25) =1024a(26) =1351a(27) =1782a(28) =2352a(29) =3104