%I A147406
%S A147406 1,1,1,5,1,9,9,43,127,501,1169,21077,14501,1245641,426195,52418221,
%T A147406 46737495,4157184667,7896602235,878958425775,1373529372451,
%U A147406 470697855207829,348267628548895,343015836691596183
%N A147406 Number of n X n binary arrays symmetric under horizontal reflection with 
               all ones connected only in a 1001-1001-1111 pattern in any orientation.
%e A147406 Maximal 8 X 8 example
%e A147406 .0.0.1.1.1.1.0.0
%e A147406 .0.0.1.0.0.1.0.0
%e A147406 .0.0.1.0.0.1.0.0
%e A147406 .0.0.0.0.0.0.0.0
%e A147406 .1.1.1.0.0.1.1.1
%e A147406 .0.0.1.0.0.1.0.0
%e A147406 .0.0.1.0.0.1.0.0
%e A147406 .1.1.1.0.0.1.1.1
%Y A147406 Sequence in context: A114594 A021662 A082020 this_sequence A147354 A134233 
               A100542
%Y A147406 Adjacent sequences: A147403 A147404 A147405 this_sequence A147407 A147408 
               A147409
%K A147406 nonn
%O A147406 1,4
%A A147406 Ron Hardin (rhhardin(AT)att.net)