Numbers whose base-5 representation has the same nonzero number of 2's and 4's.

Terms

a(0) =14a(1) =22a(2) =39a(3) =47a(4) =54a(5) =59a(6) =69a(7) =70a(8) =71a(9) =73a(10) =89a(11) =97a(12) =102a(13) =107a(14) =110a(15) =111a(16) =113a(17) =117a(18) =139a(19) =147a(20) =164a(21) =172a(22) =179a(23) =184a(24) =194a(25) =195a(26) =196a(27) =198a(28) =214a(29) =222