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%I #3 Mar 30 2012 16:49:57
%S 111111111111111,1111,120,33,30,23,21,17,16,15,14,13,12,11,10
%N a(n) = 15 written in base n.
%C The next term contains a non-decimal digit.
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Jun 04 2004