Numbers whose base-2 representation Sum_{i=0..m} d(i)*2^i has d(i)=1 when i != m mod 2.

Terms

a(0) =1a(1) =3a(2) =6a(3) =7a(4) =13a(5) =15a(6) =26a(7) =27a(8) =30a(9) =31a(10) =53a(11) =55a(12) =61a(13) =63a(14) =106a(15) =107a(16) =110a(17) =111a(18) =122a(19) =123a(20) =126a(21) =127a(22) =213a(23) =215a(24) =221a(25) =223a(26) =245a(27) =247a(28) =253a(29) =255