Numbers whose base-9 representation has the same nonzero number of 2's and 5's.

Terms

a(0) =23a(1) =47a(2) =104a(3) =128a(4) =167a(5) =176a(6) =194a(7) =203a(8) =207a(9) =208a(10) =210a(11) =211a(12) =213a(13) =214a(14) =215a(15) =221a(16) =230a(17) =239a(18) =266a(19) =290a(20) =347a(21) =371a(22) =407a(23) =416a(24) =423a(25) =424a(26) =426a(27) =427a(28) =429a(29) =430