%I A147218
%S A147218 1,1,1,1,1,1,17,27,575,1091,10073,26275,436817,1241759,99221321,
%T A147218 359430255,57329770665,261948614931,43007975306403,238557155162155,
%U A147218 61726897724737383
%N A147218 Number of n X n binary arrays symmetric under horizontal reflection with 
               all ones connected only in a 1100-0111-0101 pattern in any orientation.
%e A147218 Maximal 8 X 8 example
%e A147218 .1.1.0.0.0.0.1.1
%e A147218 .0.1.0.0.0.0.1.0
%e A147218 .1.1.1.0.0.1.1.1
%e A147218 .0.0.1.0.0.1.0.0
%e A147218 .1.0.0.0.0.0.0.1
%e A147218 .1.1.1.0.0.1.1.1
%e A147218 .0.1.0.0.0.0.1.0
%e A147218 .0.1.1.0.0.1.1.0
%Y A147218 Sequence in context: A000797 A147202 A146776 this_sequence A146856 A134468 
               A032611
%Y A147218 Adjacent sequences: A147215 A147216 A147217 this_sequence A147219 A147220 
               A147221
%K A147218 nonn
%O A147218 1,7
%A A147218 Ron Hardin (rhhardin(AT)att.net), Nov 04 2008