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%I #4 Jan 21 2015 20:20:03
%S 2736,13188,68176,350496,1738927,8730836,43840181,217514688,
%T 1076487005,5316416857,26147742882,128223160536,627281505519,
%U 3061322367965,14907228497301,72450268687501,351477169523845,1702262412004744
%N Number of (2+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally
%C Row 2 of A253993
%H R. H. Hardin, <a href="/A253994/b253994.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..0..0..0..0..0....1..0..0..1..1....0..0..0..0..1....1..0..0..0..1
%e ..0..0..0..1..1....1..1..1..1..1....1..0..1..0..1....0..0..1..0..1
%e ..1..0..0..1..0....1..1..0..1..1....0..0..1..1..1....1..0..0..0..1
%e ..1..1..1..1..0....1..1..1..1..0....0..0..1..1..0....0..1..0..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 21 2015
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