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%I #4 Jan 27 2014 04:38:42
%S 26091,2330087,192685833,14826588345,1098468030593,79148954230787,
%T 5608106012296057,392998922033423091,27352966322984607571,
%U 1895677299526633150487,131037228259070666307047
%N Number of (4+1)X(n+1) 0..2 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise
%C Row 4 of A236490
%H R. H. Hardin, <a href="/A236493/b236493.txt">Table of n, a(n) for n = 1..188</a>
%e Some solutions for n=1
%e ..2..1....0..2....0..2....1..0....1..2....0..2....2..1....2..1....2..1....0..2
%e ..2..0....0..1....0..2....2..2....2..0....2..0....2..0....0..2....0..0....1..0
%e ..2..1....1..2....0..2....0..2....1..2....2..2....2..1....1..0....0..1....2..1
%e ..0..0....0..0....0..2....2..1....1..1....1..1....2..0....2..0....1..1....1..1
%e ..2..2....1..0....2..2....2..0....1..2....0..1....0..1....0..0....0..0....1..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 27 2014