%I
%S 111111111111111111111111111111111111111111111111111111111111111111111111111111111,
%T 1010001,10000,1101,311,213,144,121,100,81,74,69,63
%N a(n) = 81 written in base n.
%C The next term contains a nondecimal digit.
%C The term 111....1111 should officially be called the "unary expansion", since in base 1 only the digit 0 may appear.
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Jun 04 2004
