a(n) is n in binary rendered as a base-10 number minus n in ternary rendered as a base-10 number.

Terms

a(0) =0a(1) =8a(2) =1a(3) =89a(4) =89a(5) =90a(6) =90a(7) =978a(8) =901a(9) =909a(10) =909a(11) =990a(12) =990a(13) =998a(14) =991a(15) =9879a(16) =9879a(17) =9810a(18) =9810a(19) =9898a(20) =9891a(21) =9899a(22) =9899a(23) =10780a(24) =10780a(25) =10788a(26) =10011a(27) =10099a(28) =10099a(29) =10100