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..12.
Sequence in context: A095566 A095568 A095570 * A095574 A095576 A033290
Adjacent sequences: A095569 A095570 A095571 * A095573 A095574 A095575
N. J. A. Sloane, Jun 04 2004