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%I #4 Nov 23 2012 10:43:24
%S 20,132,1866,18564,154271,1230906,9838834,77121132,574114068,
%T 4011221077,26423019415,165621299493,995370542165,5764471362464,
%U 32276996597715,175191988301623,923800070721626,4741175946914574,23718827918983202
%N Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 nX4 array
%C Column 4 of A219578
%H R. H. Hardin, <a href="/A219574/b219574.txt">Table of n, a(n) for n = 1..131</a>
%e Some solutions for n=3
%e ..2..0..0..0....1..1..0..0....1..0..0..0....1..0..0..0....1..1..0..0
%e ..1..1..0..0....2..1..1..0....2..1..0..0....1..1..0..0....3..1..1..0
%e ..1..1..1..3....3..1..1..1....2..2..3..2....3..1..2..1....3..2..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Nov 23 2012
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