Odd composite numbers which in base 2 contain their largest proper factor as a substring of digits.

Terms

a(0) =55a(1) =91a(2) =215a(3) =407a(4) =493a(5) =893a(6) =1189a(7) =1343a(8) =1403a(9) =1643a(10) =1681a(11) =1961a(12) =3151a(13) =3223a(14) =3415a(15) =4063a(16) =4579a(17) =7087a(18) =7597a(19) =7979a(20) =8791a(21) =9167a(22) =10579a(23) =11227a(24) =13303a(25) =13655a(26) =14219a(27) =15487a(28) =16147a(29) =22939