Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #4 Mar 31 2012 12:35:12
%S 1,1,1,1,1,1,19,31,615,1219,16139,42305,1128827,3502811,254593369,
%T 985218883,138612115423,664622922147,144116871368241,849726636226171,
%U 336332191825755637
%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-1100-1111 pattern in any orientation.
%e Maximal 8 X 8 example
%e .1.1.0.0.0.0.1.1
%e .1.1.1.0.0.1.1.1
%e .1.0.0.0.0.0.0.1
%e .1.0.0.0.0.0.0.1
%e .0.0.1.0.0.1.0.0
%e .0.0.1.0.0.1.0.0
%e .1.1.1.0.0.1.1.1
%e .0.1.1.0.0.1.1.0
%K nonn
%O 1,7
%A _R. H. Hardin_, Nov 04 2008