Binary expansion is 1x100...0 where x = 0 or 1.

Terms

a(0) =5a(1) =7a(2) =10a(3) =14a(4) =20a(5) =28a(6) =40a(7) =56a(8) =80a(9) =112a(10) =160a(11) =224a(12) =320a(13) =448a(14) =640a(15) =896a(16) =1280a(17) =1792a(18) =2560a(19) =3584a(20) =5120a(21) =7168a(22) =10240a(23) =14336a(24) =20480a(25) =28672a(26) =40960a(27) =57344a(28) =81920a(29) =114688