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%I #3 Mar 30 2012 16:49:58
%S 53,58,61,67,73,81,111,133,201,243,1021,2201,1001001,
%T 1111111111111111111111111111111111111111111111111111111111111111111111111
%N a(n) = 73 written in base 14 - n.
%K nonn,fini,full
%O 0,1
%A _N. J. A. Sloane_, Jun 04 2004