%I #5 Jun 01 2015 13:31:29
%S 512,7334,19920,18282,4028,1256,520,424,312,252,228,192,188,176,188,
%T 192,188,192,172,192,188,192,188,176,188,192,188,192,172,192,188,192,
%U 188,176,188,192,188,192,172,192,188,192,188,176,188,192,188,192,172,192,188,192
%N Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two sums of the central column and central row nondecreasing horizontally and vertically
%C Diagonal of A258522
%H R. H. Hardin, <a href="/A258518/b258518.txt">Table of n, a(n) for n = 1..68</a>
%e Some solutions for n=4
%e ..0..1..0..0..0..0....0..1..1..0..0..1....0..1..0..0..0..1....1..1..0..0..0..0
%e ..0..1..1..0..0..1....0..1..1..1..1..1....1..1..1..1..1..0....1..1..0..1..0..0
%e ..0..1..1..0..0..1....0..1..1..1..0..0....1..0..1..1..1..0....0..1..1..1..0..0
%e ..0..0..0..1..1..0....1..1..0..0..0..1....1..1..1..0..0..1....0..1..1..0..1..1
%e ..1..1..0..0..0..0....1..0..0..0..0..1....1..1..0..0..0..1....0..1..1..0..1..1
%e ..0..0..1..1..0..1....0..0..1..0..0..1....0..1..1..1..0..0....1..1..1..1..0..0
%Y Cf. A258522
%K nonn
%O 1,1
%A _R. H. Hardin_, Jun 01 2015