Numbers whose base-6 representation has the same number of 1's, 2's and 5's.

Terms

a(0) =0a(1) =3a(2) =4a(3) =18a(4) =21a(5) =22a(6) =24a(7) =27a(8) =28a(9) =53a(10) =68a(11) =83a(12) =103a(13) =108a(14) =111a(15) =112a(16) =126a(17) =129a(18) =130a(19) =132a(20) =135a(21) =136a(22) =144a(23) =147a(24) =148a(25) =162a(26) =165a(27) =166a(28) =168a(29) =171