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Number of nX9 binary arrays with all 1s connected, and all corners 1
0

%I #3 Mar 31 2012 12:35:32

%S 1,577,191285,54271807,15044778941,4145512873039

%N Number of nX9 binary arrays with all 1s connected, and all corners 1

%K nonn

%O 1,2

%A _R. H. Hardin_ Jul 20 2009