|
%I #4 Mar 31 2012 12:35:16
%S 1,1,1,1,1,3,7,15,31,125,537,2497,11379,73403,564557,5044749,48150503,
%T 565823439,7944991263,131881718303,2468412664385
%N Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 11100-00100-00111 pattern in any orientation.
%e Maximal 8 X 8 example
%e .0.0.0.0.0.0.0.0
%e .0.0.1.1.1.0.0.0
%e .0.1.0.0.1.0.0.0
%e .0.1.0.0.1.1.1.0
%e .0.1.1.1.0.0.0.0
%e .0.0.0.1.0.0.0.0
%e .0.0.0.1.0.0.0.0
%e .0.0.0.0.0.0.0.0
%K nonn
%O 1,6
%A _R. H. Hardin_, Nov 04 2008
|
