%I A147150
%S A147150 1,1,1,1,1,5,15,33,101,729,5159,33035,302287,3979621,62594669,1090041091,
%T A147150 25034274381,742760513733,26752494041629
%N A147150 Number of n X n binary arrays symmetric about main diagonal with all 
               ones connected only in a 1000-1100-0111-0010 pattern in any orientation.
%e A147150 Maximal 8 X 8 example
%e A147150 .0.0.0.0.0.0.0.0
%e A147150 .0.0.0.0.0.0.0.1
%e A147150 .0.0.0.0.0.0.1.1
%e A147150 .0.0.0.0.1.1.1.0
%e A147150 .0.0.0.1.0.1.0.0
%e A147150 .0.0.0.1.1.0.0.0
%e A147150 .0.0.1.1.0.0.0.0
%e A147150 .0.1.1.0.0.0.0.0
%Y A147150 Sequence in context: A134887 A055004 A147264 this_sequence A006003 A111385 
               A026101
%Y A147150 Adjacent sequences: A147147 A147148 A147149 this_sequence A147151 A147152 
               A147153
%K A147150 nonn
%O A147150 1,6
%A A147150 Ron Hardin (rhhardin(AT)att.net), Nov 04 2008