Numbers whose base-12 representation has the same nonzero number of 1's and 4's.

Terms

a(0) =16a(1) =49a(2) =148a(3) =172a(4) =184a(5) =192a(6) =194a(7) =195a(8) =197a(9) =198a(10) =199a(11) =200a(12) =201a(13) =202a(14) =203a(15) =208a(16) =220a(17) =232a(18) =244a(19) =256a(20) =268a(21) =280a(22) =304a(23) =337a(24) =448a(25) =481a(26) =577a(27) =588a(28) =590a(29) =591