Search: id:A140786
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%I A140786
%S A140786 1,2,5,30,230,4600,118735,8311450,756803538,190714491576,62835570762274,
%T A140786 58060067384341176,70381397432713019444,241548955989071082731808,
%U A140786 1090217292455289464608212443,14031096553899575409507694141410
%N A140786 Number of n X n symmetric binary matrices with no more than one greater 
               count of 1s than 0s in and to the left of any position.
%Y A140786 Sequence in context: A163800 A019027 A019031 this_sequence A129951 A127298 
               A000133
%Y A140786 Adjacent sequences: A140783 A140784 A140785 this_sequence A140787 A140788 
               A140789
%K A140786 nonn
%O A140786 0,2
%A A140786 Ron Hardin (rhhardin(AT)att.net), Jul 13 2008

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