%I #5 Dec 18 2015 18:18:51
%S 1,3,10,99,1376,37624,1906245,180760099,31517059634,10196460883584
%N Number of n X n 0..1 arrays with no element equal to exactly two horizontal and vertical neighbors, with new values 0..1 introduced in row major order
%C Diagonal of A240519
%e Some solutions for n=4
%e ..0..1..0..1....0..1..0..1....0..1..0..1....0..1..1..1....0..1..0..1
%e ..1..0..1..0....0..1..1..0....1..1..1..0....0..0..1..0....1..1..0..0
%e ..0..1..0..1....1..1..0..1....0..0..0..1....0..1..0..1....0..1..0..1
%e ..1..0..1..0....0..1..0..1....1..0..1..0....1..0..1..0....1..0..1..0
%K nonn
%O 1,2
%A _R. H. Hardin_, Apr 06 2014
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