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%I #3 Mar 30 2012 16:49:57
%S 43,47,50,55,61,67,106,131,210,313,2001,110111,
%T 1111111111111111111111111111111111111111111111111111111
%N a(n) = 55 written in base 13 - n.
%K nonn,fini,full
%O 0,1
%A _N. J. A. Sloane_, Jun 04 2004