Numbers whose base-4 representation Sum_{i=0..m} d(i)*4^i has odd d(m-i) for all odd i.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =7a(5) =9a(6) =11a(7) =13a(8) =15a(9) =20a(10) =21a(11) =22a(12) =23a(13) =28a(14) =29a(15) =30a(16) =31a(17) =36a(18) =37a(19) =38a(20) =39a(21) =44a(22) =45a(23) =46a(24) =47a(25) =52a(26) =53a(27) =54a(28) =55a(29) =60