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%I #7 Jan 01 2024 19:49:48
%S 66,530,7432,171362,6324344,386981422,38841628112,6372413856774,
%T 1725107798449008,768319633522920162
%N Number of (n+2) X (n+2) binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.
%C Diagonal of A202647.
%e Some solutions for n=3
%e ..1..0..1..0..0....1..1..0..1..0....1..0..0..1..0....0..0..1..1..0
%e ..0..0..1..0..1....0..0..1..1..0....0..0..1..0..1....0..1..0..0..1
%e ..0..1..0..1..1....0..1..0..0..1....0..1..0..1..1....1..1..0..1..1
%e ..1..0..1..1..0....1..0..0..1..0....1..0..0..1..0....1..0..1..0..0
%e ..0..0..1..0..1....0..1..1..0..0....0..1..1..0..0....0..1..0..0..1
%Y Cf. A202647.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 22 2011
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