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: A095554 A095556 A291042 * A095560 A095562 A095564
Adjacent sequences: A095555 A095556 A095557 * A095559 A095560 A095561
N. J. A. Sloane, Jun 04 2004