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%I #5 Mar 31 2012 12:36:57
%S 1,4773,1525965,276550270,48904258294,9344922234283,1791660443900385,
%T 338602574128472532,63976297551499117500,12121902798540810205780,
%U 2296828698552089841696914,434962374988494300152555897
%N Number of nX4 0..4 arrays with every nonzero element less than or equal to some NW, E or S neighbor
%C Column 4 of A203550
%H R. H. Hardin, <a href="/A203546/b203546.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..4..4..2..4....3..3..2..4....0..0..1..4....1..2..1..0....3..4..2..3
%e ..4..4..1..4....2..3..2..4....2..2..3..4....3..2..1..4....0..4..4..3
%e ..3..0..1..4....2..2..3..4....3..3..1..4....3..3..2..4....3..0..3..4
%e ..3..4..4..4....1..2..4..4....1..3..4..4....0..0..4..4....3..2..1..0
%e ..4..4..4..4....1..1..1..4....4..4..4..4....1..4..4..4....3..3..1..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 02 2012
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