Numbers whose base-6 representation has the same number of 0's, 1's and 5's.

Terms

a(0) =2a(1) =3a(2) =4a(3) =14a(4) =15a(5) =16a(6) =20a(7) =21a(8) =22a(9) =26a(10) =27a(11) =28a(12) =41a(13) =66a(14) =86a(15) =87a(16) =88a(17) =92a(18) =93a(19) =94a(20) =98a(21) =99a(22) =100a(23) =122a(24) =123a(25) =124a(26) =128a(27) =129a(28) =130a(29) =134