Values of floor((4/3)^n) that are composite.

Terms

a(0) =4a(1) =9a(2) =42a(3) =56a(4) =74a(5) =99a(6) =133a(7) =177a(8) =236a(9) =315a(10) =420a(11) =560a(12) =747a(13) =996a(14) =1328a(15) =1771a(16) =2362a(17) =3149a(18) =4199a(19) =5599a(20) =7466a(21) =9954a(22) =13273a(23) =17697a(24) =23596a(25) =31462a(26) =41950a(27) =74577a(28) =99437a(29) =132583