Search: id:A147262
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%I A147262
%S A147262 1,1,1,1,1,1,1,1,199,377,3217,8011,104473,273171,9678777,30911627,
%T A147262 4517322323,18623780151,3664520343941,18523730792349,4450318556374425,
%U A147262 27331408113246915
%N A147262 Number of n X n binary arrays symmetric under horizontal reflection with 
               all ones connected only in a 0100-1100-0111-0001 pattern in any orientation.
%e A147262 Maximal 9 X 9 example
%e A147262 .0.0.0.0.0.0.0.0.0
%e A147262 .0.0.0.0.0.0.0.0.0
%e A147262 .0.1.0.0.0.0.0.1.0
%e A147262 .1.1.0.0.0.0.0.1.1
%e A147262 .0.1.1.1.0.1.1.1.0
%e A147262 .1.0.0.1.0.1.0.0.1
%e A147262 .1.1.1.0.0.0.1.1.1
%e A147262 .0.0.1.1.0.1.1.0.0
%e A147262 .0.0.1.0.0.0.1.0.0
%Y A147262 Sequence in context: A142749 A142123 A046006 this_sequence A106759 A004926 
               A004946
%Y A147262 Adjacent sequences: A147259 A147260 A147261 this_sequence A147263 A147264 
               A147265
%K A147262 nonn
%O A147262 1,9
%A A147262 Ron Hardin (rhhardin(AT)att.net), Nov 04 2008

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