Numbers whose set of base-9 digits is {3,4}.

Terms

a(0) =3a(1) =4a(2) =30a(3) =31a(4) =39a(5) =40a(6) =273a(7) =274a(8) =282a(9) =283a(10) =354a(11) =355a(12) =363a(13) =364a(14) =2460a(15) =2461a(16) =2469a(17) =2470a(18) =2541a(19) =2542a(20) =2550a(21) =2551a(22) =3189a(23) =3190a(24) =3198a(25) =3199a(26) =3270a(27) =3271a(28) =3279a(29) =3280