%I
%S 1,1,1,1,3,7,14,42,163,719,3628,22263,164206,1435593,15071126,
%T 189778079,2837151684,50511089269,1077365551719,27499985838212,
%U 837318042012350,30417349994865723,1319974251781005014,68432608866087524550
%N Number of n X n binary arrays symmetric about main diagonal with all ones connected only either as two by three or three by two blocks.
%e Maximal 8 X 8 example
%e .0.0.0.1.1.0.0.0
%e .0.0.0.1.1.0.0.0
%e .0.0.0.1.1.0.0.0
%e .1.1.1.0.0.0.1.1
%e .1.1.1.0.0.0.1.1
%e .0.0.0.0.0.0.1.1
%e .0.0.0.1.1.1.0.0
%e .0.0.0.1.1.1.0.0
%K nonn
%O 1,5
%A _R. H. Hardin_, Oct 27 2008
