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%I #5 Jan 16 2015 13:05:35
%S 512,6339,52014,284109,156876,295098,262418,218499,347440,571191,
%T 845552,1524398,2858410,5021094,9662090,18996817,36633058,72806768,
%U 145731460,290387182,583234472,1173787454,2359763404,4752830758,9577047474
%N Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally
%C Diagonal of A253841
%H R. H. Hardin, <a href="/A253833/b253833.txt">Table of n, a(n) for n = 1..29</a>
%e Some solutions for n=3
%e ..0..1..1..1..0....0..1..1..0..0....1..1..1..0..1....0..0..0..0..0
%e ..0..0..0..0..1....1..0..1..1..1....0..0..1..0..1....1..0..0..0..1
%e ..0..1..1..0..1....0..0..0..0..0....0..0..1..0..0....0..0..0..0..1
%e ..0..0..1..1..1....0..1..1..1..0....1..1..1..1..1....0..0..0..1..1
%e ..1..0..1..0..0....1..1..0..0..1....1..1..0..1..1....1..1..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 16 2015