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%I #2 Mar 30 2012 17:40:41
%S -1,-2,-4,-16,-48,-160,-576
%N Minimal determinant of real n X n symmetric (+1,-1) matrices.
%Y Cf. A119001, A119007, A119003.
%K sign,more
%O 1,2
%A _Giovanni Resta_, May 08 2006