The next term contains a non-decimal digit.
The term 111....1111 should officially be called the "unary expansion", since in base 1 only the digit 0 may appear.
Table of n, a(n) for n=1..11.
Sequence in context: A095550 A095552 A095554 * A291042 A095558 A095560
Adjacent sequences: A095553 A095554 A095555 * A095557 A095558 A095559
N. J. A. Sloane, Jun 04 2004