%I #4 Dec 30 2014 11:56:18
%S 3249,9228,25659,74953,210417,600020,1660088,4590122,12462900,
%T 33364770,88332846,228094422,584261303,1450543774,3577232487,
%U 8532736844,20234227845,46437782630,106028484423,234761319957,517489800375
%N Number of (7+1)X(n+1) 0..1 arrays with every 2X2 subblock sum nondecreasing horizontally, vertically and antidiagonally ne-to-sw
%C Row 7 of A253326
%H R. H. Hardin, <a href="/A253332/b253332.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A253332/a253332.txt">Empirical recurrence of order 87</a>
%F Empirical recurrence of order 87 (see link above)
%e Some solutions for n=4
%e ..0..0..1..0..1....0..0..1..1..1....0..0..0..1..1....0..0..0..0..0
%e ..1..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..1..0
%e ..0..1..1..1..1....1..1..1..1..1....0..1..1..1..1....1..0..1..0..1
%e ..1..0..0..0..0....0..0..0..0..0....1..0..0..0..0....1..0..1..0..1
%e ..0..1..1..1..1....1..1..1..1..1....0..1..1..1..1....1..1..1..1..1
%e ..1..1..0..1..0....0..1..0..1..0....0..1..0..1..0....0..1..0..1..0
%e ..0..1..1..1..1....1..1..1..1..1....1..1..1..1..1....1..1..1..1..1
%e ..1..1..0..1..0....1..1..1..1..1....0..1..1..1..1....0..1..0..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 30 2014
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