Numbers whose base-3 and base-10 expansions have no digits in common.

Terms

a(0) =3a(1) =4a(2) =5a(3) =6a(4) =7a(5) =8a(6) =9a(7) =18a(8) =27a(9) =28a(10) =33a(11) =34a(12) =35a(13) =36a(14) =37a(15) =38a(16) =39a(17) =40a(18) =43a(19) =44a(20) =45a(21) =46a(22) =47a(23) =48a(24) =49a(25) =50a(26) =53a(27) =54a(28) =55a(29) =56