Duplicate of A037314.

Terms

a(0) =1a(1) =2a(2) =9a(3) =10a(4) =11a(5) =18a(6) =19a(7) =20a(8) =81a(9) =82a(10) =83a(11) =90a(12) =91a(13) =92a(14) =99a(15) =100a(16) =101a(17) =162a(18) =163a(19) =164