Numbers with no 1's in their base-5 expansion.

Terms

a(0) =0a(1) =2a(2) =3a(3) =4a(4) =10a(5) =12a(6) =13a(7) =14a(8) =15a(9) =17a(10) =18a(11) =19a(12) =20a(13) =22a(14) =23a(15) =24a(16) =50a(17) =52a(18) =53a(19) =54a(20) =60a(21) =62a(22) =63a(23) =64a(24) =65a(25) =67a(26) =68a(27) =69a(28) =70a(29) =72