Numbers whose base-6 representation has the same number of 0's, 4's and 5's.

Terms

a(0) =1a(1) =2a(2) =3a(3) =7a(4) =8a(5) =9a(6) =13a(7) =14a(8) =15a(9) =19a(10) =20a(11) =21a(12) =43a(13) =44a(14) =45a(15) =49a(16) =50a(17) =51a(18) =55a(19) =56a(20) =57a(21) =79a(22) =80a(23) =81a(24) =85a(25) =86a(26) =87a(27) =91a(28) =92a(29) =93