Leading terms of rows in A081551.

Terms

a(0) =1a(1) =11a(2) =102a(3) =1003a(4) =10004a(5) =100005a(6) =1000006a(7) =10000007a(8) =100000008a(9) =1000000009a(10) =10000000010a(11) =100000000011