Number of n-digit terms in A115853.

Terms

a(0) =0a(1) =9a(2) =9a(3) =252a(4) =819a(5) =11754a(6) =72585a(7) =803448a(8) =6978159a(9) =73047510a(10) =744922341a(11) =8023947732a(12) =88219609227a(13) =993117723282