a(n) = 10*11^n+1.

Terms

a(0) =11a(1) =111a(2) =1211a(3) =13311a(4) =146411a(5) =1610511a(6) =17715611a(7) =194871711a(8) =2143588811a(9) =23579476911a(10) =259374246011