Numbers whose base-11 representation has the same nonzero number of 2's and 4's.

Terms

a(0) =26a(1) =46a(2) =147a(3) =167a(4) =246a(5) =257a(6) =279a(7) =286a(8) =287a(9) =289a(10) =291a(11) =292a(12) =293a(13) =294a(14) =295a(15) =296a(16) =301a(17) =312a(18) =323a(19) =334a(20) =345a(21) =356a(22) =389a(23) =409a(24) =486a(25) =497a(26) =506a(27) =507a(28) =509a(29) =511