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%I #4 Jan 12 2014 06:03:56
%S 660,9320,184281,3824372,74362722,1271453587,19182239308,256273383832,
%T 3086943812776,33826465004088,341964622301035,3210882675698422,
%U 28280047570300320,234710501561552376,1848700471390541492
%N Number of (n+1)X(5+1) 0..1 arrays with the sum of each 2X2 subblock two extreme terms minus its two median terms lexicographically nondecreasing rowwise and columnwise
%C Column 5 of A235555
%H R. H. Hardin, <a href="/A235553/b235553.txt">Table of n, a(n) for n = 1..144</a>
%e Some solutions for n=3
%e ..1..0..1..0..1..0....0..1..1..1..0..0....1..0..1..0..0..0....0..1..1..1..0..1
%e ..0..1..0..0..0..0....1..1..0..1..0..1....1..1..1..0..0..0....1..1..1..1..0..1
%e ..1..0..0..0..0..1....0..1..0..1..1..1....1..0..0..1..0..1....1..1..0..1..1..0
%e ..1..0..1..0..1..1....0..0..1..0..1..0....1..1..0..1..1..1....1..1..1..0..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 12 2014
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