Number of zeros in numbers 1 to 999..9 (n digits).

A033713

Number of zeros in numbers 1 to 999..9 (n digits).

Terms

    a(0) =0a(1) =9a(2) =189a(3) =2889a(4) =38889a(5) =488889a(6) =5888889a(7) =68888889a(8) =788888889a(9) =8888888889a(10) =98888888889

External references