Numbers whose base-11 representation has the same nonzero number of 1's and 5's.

Terms

a(0) =16a(1) =56a(2) =126a(3) =148a(4) =159a(5) =170a(6) =176a(7) =178a(8) =179a(9) =180a(10) =182a(11) =183a(12) =184a(13) =185a(14) =186a(15) =192a(16) =203a(17) =214a(18) =225a(19) =236a(20) =258a(21) =298a(22) =379a(23) =419a(24) =500a(25) =540a(26) =606a(27) =616a(28) =618a(29) =619