Total number of digits in all n-digit nonnegative integers.

A113119

Total number of digits in all n-digit nonnegative integers.

Terms

    a(0) =10a(1) =180a(2) =2700a(3) =36000a(4) =450000a(5) =5400000a(6) =63000000a(7) =720000000a(8) =8100000000a(9) =90000000000a(10) =990000000000

External references