Numbers whose base-2 representation has one more 0 than 1's.

Terms

a(0) =4a(1) =17a(2) =18a(3) =20a(4) =24a(5) =67a(6) =69a(7) =70a(8) =73a(9) =74a(10) =76a(11) =81a(12) =82a(13) =84a(14) =88a(15) =97a(16) =98a(17) =100a(18) =104a(19) =112a(20) =263a(21) =267a(22) =269a(23) =270a(24) =275a(25) =277a(26) =278a(27) =281a(28) =282a(29) =284