a(n) = 10^n minus its binary weight.

Terms

a(0) =0a(1) =8a(2) =97a(3) =994a(4) =9995a(5) =99994a(6) =999993a(7) =9999992a(8) =99999988a(9) =999999987a(10) =9999999989a(11) =99999999985a(12) =999999999987