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%I #5 Jun 03 2015 09:07:42
%S 16,112,598,1891,5070,10854,21653,38451,64507,100830,153641,223684,
%T 317754,436768,592439,784607,1024843,1313644,1669887,2091844,2597102,
%U 3185410,3884481,4690355,5627875,6695714,7932093,9330156,10923242
%N Number of (n+1)X(n+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically
%C Diagonal of A258554
%H R. H. Hardin, <a href="/A258546/b258546.txt">Table of n, a(n) for n = 1..69</a>
%e Some solutions for n=4
%e ..1..0..0..0..0....1..0..0..0..0....0..0..1..0..0....0..1..1..1..1
%e ..1..0..0..0..0....1..0..0..0..0....1..1..0..0..1....0..0..0..0..0
%e ..1..0..0..0..0....1..0..0..0..0....1..0..0..1..1....1..1..1..1..1
%e ..1..0..0..0..0....1..1..1..1..1....1..0..1..1..0....0..0..0..0..0
%e ..0..0..0..0..0....1..1..0..0..1....0..1..1..0..1....1..1..1..1..1
%Y Cf. A258554
%K nonn
%O 1,1
%A _R. H. Hardin_, Jun 03 2015
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