Sum of digits of numbers between 0 and (4/9)*(10^n-1).

A089906

Sum of digits of numbers between 0 and (4/9)*(10^n-1).

Terms

    a(0) =0a(1) =10a(2) =270a(3) =4650a(4) =66430a(5) =864210a(6) =10641990a(7) =126419770a(8) =1464197550a(9) =16641975330a(10) =186419753110

External references