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..13.
Sequence in context: A155538 A095550 A095552 * A095556 A095558 A095560
Adjacent sequences: A095551 A095552 A095553 * A095555 A095556 A095557
N. J. A. Sloane, Jun 04 2004