Numbers whose base-2 representation has 4 fewer 0's than 1's.

Terms

a(0) =15a(1) =47a(2) =55a(3) =59a(4) =61a(5) =62a(6) =159a(7) =175a(8) =183a(9) =187a(10) =189a(11) =190a(12) =207a(13) =215a(14) =219a(15) =221a(16) =222a(17) =231a(18) =235a(19) =237a(20) =238a(21) =243a(22) =245a(23) =246a(24) =249a(25) =250a(26) =252a(27) =575a(28) =607a(29) =623