Search: id:A146443
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%I A146443
%S A146443 1,1,1,1,1,1,1,17,41,75,189,781,2423,8297,41313,246219,1447691,8722011,
%T A146443 58593249,472152107,3875447631
%N A146443 Number of n X n binary arrays symmetric under 90 degree rotation with 
               all ones connected only in a 1100-0100-0111 pattern in any orientation.
%e A146443 Maximal 8 X 8 example
%e A146443 .1.0.0.0.0.0.1.1
%e A146443 .1.1.1.0.0.0.1.0
%e A146443 .0.0.1.0.1.1.1.0
%e A146443 .0.0.1.0.0.0.0.0
%e A146443 .0.0.0.0.0.1.0.0
%e A146443 .0.1.1.1.0.1.0.0
%e A146443 .0.1.0.0.0.1.1.1
%e A146443 .1.1.0.0.0.0.0.1
%Y A146443 Sequence in context: A138005 A166147 A028886 this_sequence A110226 A054819 
               A087877
%Y A146443 Adjacent sequences: A146440 A146441 A146442 this_sequence A146444 A146445 
               A146446
%K A146443 nonn
%O A146443 1,8
%A A146443 Ron Hardin (rhhardin(AT)att.net)

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