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%I #6 Dec 18 2015 18:18:00
%S 2,16,58,556,7500,119224,2926752,111202694,5582239354,398193149976,
%T 43178426815216,6623459579619334,1414003622686654366,
%U 443957184641073369216
%N Number of n X n 0..1 arrays avoiding the patterns 0 1 0 or 1 0 1 in any row, column, diagonal or antidiagonal
%C Diagonal of A206987
%e Some solutions for n=4
%e ..1..0..0..0....0..1..1..1....1..0..0..1....1..1..0..0....1..1..0..0
%e ..0..0..0..0....1..1..1..0....0..0..0..1....0..0..0..0....1..0..0..0
%e ..0..0..0..1....1..1..1..0....0..0..0..1....0..0..0..0....0..0..0..0
%e ..1..1..1..1....0..1..1..0....1..0..0..1....1..0..0..0....0..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 14 2012
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