%I #3 Mar 31 2012 12:35:08
%S 1,2,1,2,2,7,5,38,12,182,72,1536,513,21327,4531,360939,68662,9098657,
%T 1429824,345351393,40840428,18058986880,1747979822,1362075540043,
%U 106711196102,149443289019658,9237029528023,23324890541218597
%N Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in two by two blocks.
%e Maximal 7 X 7 example
%e .0.0.0.0.0.0.0
%e .1.1.0.0.0.1.1
%e .1.1.0.0.0.1.1
%e .0.0.0.0.0.0.0
%e .1.1.0.0.0.1.1
%e .1.1.0.0.0.1.1
%e .0.0.0.0.0.0.0
%K nonn
%O 1,2
%A _R. H. Hardin_, Oct 22 2008
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