Numbers whose base-9 representation Sum_{i=0..m} d(i)*9^(m-i) has d(i)=0 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) =18a(10) =27a(11) =36a(12) =45a(13) =54a(14) =63a(15) =72a(16) =81a(17) =82a(18) =83a(19) =84a(20) =85a(21) =86a(22) =87a(23) =88a(24) =89a(25) =162a(26) =163a(27) =164a(28) =165a(29) =166