a(n) = 8*((9*n + 8)*10^n - 8)/81.

A294329

a(n) = 8*((9*n + 8)*10^n - 8)/81.

Terms

    a(0) =0a(1) =16a(2) =256a(3) =3456a(4) =43456a(5) =523456a(6) =6123456a(7) =70123456a(8) =790123456a(9) =8790123456a(10) =96790123456

External references