Average of positive multiples of 3 with n decimal digits, rounded down.

A110431

Average of positive multiples of 3 with n decimal digits, rounded down.

Terms

    a(0) =6a(1) =55a(2) =550a(3) =5500a(4) =55000a(5) =550000a(6) =5500000a(7) =55000000a(8) =550000000a(9) =5500000000a(10) =55000000000a(11) =550000000000

External references