%I A146189
%S A146189 1,1,1,1,1,1,117,259,2279,5789,60955,163861,9576387,34012697,
%T A146189 10076483081,49427387999,9949697912705,60225158985931,15793067759502057,
%U A146189 116501021735138203,110213762112932651169,1030724751585178353123
%N A146189 Number of n X n binary arrays symmetric under horizontal reflection with 
               all ones connected only in a 101-111-100 pattern in any orientation.
%e A146189 Maximal 8 X 8 example
%e A146189 .0.0.0.0.0.0.0.0
%e A146189 .0.0.0.0.0.0.0.0
%e A146189 .1.1.1.0.0.1.1.1
%e A146189 .0.1.0.0.0.0.1.0
%e A146189 .0.1.1.0.0.1.1.0
%e A146189 .1.0.0.0.0.0.0.1
%e A146189 .1.1.1.0.0.1.1.1
%e A146189 .1.0.1.0.0.1.0.1
%Y A146189 Sequence in context: A050245 A031174 A146172 this_sequence A063332 A063338 
               A156884
%Y A146189 Adjacent sequences: A146186 A146187 A146188 this_sequence A146190 A146191 
               A146192
%K A146189 nonn
%O A146189 1,7
%A A146189 Ron Hardin (rhhardin(AT)att.net), Oct 27 2008