Numbers whose base-5 representation has the same number of 0's and 3's.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =7a(5) =9a(6) =11a(7) =12a(8) =14a(9) =15a(10) =21a(11) =22a(12) =24a(13) =28a(14) =31a(15) =32a(16) =34a(17) =36a(18) =37a(19) =39a(20) =40a(21) =46a(22) =47a(23) =49a(24) =53a(25) =56a(26) =57a(27) =59a(28) =61a(29) =62