Numbers whose base-9 representation Sum_{i=0..m} d(i)*9^(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) =7a(7) =8a(8) =9a(9) =11a(10) =13a(11) =15a(12) =17a(13) =18a(14) =20a(15) =22a(16) =24a(17) =26a(18) =27a(19) =29a(20) =31a(21) =33a(22) =35a(23) =36a(24) =38a(25) =40a(26) =42a(27) =44a(28) =45a(29) =47