a(n) = (10^(2*n+1) - 1)/3 + 5*10^n.A332138a(n) = (10^(2*n+1) - 1)/3 + 5*10^n.Terms a(0) =8a(1) =383a(2) =33833a(3) =3338333a(4) =333383333a(5) =33333833333External referencesoeis: A332138