a(n) = 9*a(n-1) + 5*a(n-2).

Terms

a(0) =0a(1) =1a(2) =9a(3) =86a(4) =819a(5) =7801a(6) =74304a(7) =707741a(8) =6741189a(9) =64209406a(10) =611590599a(11) =5825362421a(12) =55486214784a(13) =528502745161