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%I #3 Mar 31 2012 12:35:07
%S 3,9,48,438,6774,178263,8064528,635233629,88262479353,21895746114393,
%T 9802094635734609,7991530444822867188,11958178763325581795193,
%U 33058393812927903895526529,169791780269023089222297799203,1628050027945868401705569575523453
%N Number of symmetric n X n binary matrices with rows, considered as binary numbers, in strictly increasing order.
%K nonn
%O 2,1
%A _R. H. Hardin_, Jul 31 2008
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