Numbers whose base-6 representation Sum_{i=0..m} d(i)*6^(m-i) has even d(i) for all odd i.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =8a(7) =10a(8) =12a(9) =14a(10) =16a(11) =18a(12) =20a(13) =22a(14) =24a(15) =26a(16) =28a(17) =30a(18) =32a(19) =34a(20) =36a(21) =37a(22) =38a(23) =39a(24) =40a(25) =41a(26) =48a(27) =49a(28) =50a(29) =51