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%I #3 Mar 31 2012 12:35:08
%S 1,3,5,18,124,889,9624,117592,3086899,71342470,3940302454,
%T 162484045629,19765145478158,1482360209667114,393627814809408705,
%U 53489489176352337875,30927278141339388397696,7617052120730650394236371
%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only either two adjacent vertically or two adjacent horizontally.
%K nonn
%O 1,2
%A _R. H. Hardin_, Oct 18 2008