%I A146002
%S A146002 1,1,2,1,2,1,5,2,9,3,28,6,76,13,295,41,1196,134,6337,523,36933,2341,
%T A146002 266568,13112,2186885,85330,21909179,657274,253725200,5867785
%N A146002 Number of n X n binary arrays symmetric about the diagonal and under 
               90 degree rotation with all ones connected only in a 3X3 plus 2,1 
               2,2 2,3 1,2 3,2.
%e A146002 Maximal 8 X 8 example
%e A146002 .0.1.0.0.0.0.1.0
%e A146002 .1.1.1.0.0.1.1.1
%e A146002 .0.1.0.0.0.0.1.0
%e A146002 .0.0.0.0.0.0.0.0
%e A146002 .0.0.0.0.0.0.0.0
%e A146002 .0.1.0.0.0.0.1.0
%e A146002 .1.1.1.0.0.1.1.1
%e A146002 .0.1.0.0.0.0.1.0
%Y A146002 Sequence in context: A066083 A128644 A000001 this_sequence A109087 A102048 
               A102551
%Y A146002 Adjacent sequences: A145999 A146000 A146001 this_sequence A146003 A146004 
               A146005
%K A146002 nonn
%O A146002 1,3
%A A146002 Ron Hardin (rhhardin(AT)att.net), Oct 26 2008