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%I #5 Mar 31 2012 12:36:55
%S 6,286,7820,177290,4078368,96511488,2282090278,53729637298,
%T 1264907516536,29797761325536,701982503271882,16535890993275488,
%U 389515214599154626,9175447823797074126,216137962147112553480,5091361932881161899850
%N Number of nX2 0..5 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor
%C Column 2 of A203057
%H R. H. Hardin, <a href="/A203051/b203051.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 21*a(n-1) -50*a(n-2) +2261*a(n-3) +5179*a(n-4) +58301*a(n-5) +113102*a(n-6) +454821*a(n-7) +550157*a(n-8) +1071256*a(n-9) +600336*a(n-10) +518400*a(n-11)
%e Some solutions for n=5
%e ..1..2....2..4....1..1....5..1....0..2....4..5....0..5....5..0....0..3....2..1
%e ..3..5....2..4....1..5....5..2....2..3....5..5....0..5....5..5....1..5....2..1
%e ..3..5....3..0....0..5....2..1....4..3....2..2....1..0....2..1....2..5....0..2
%e ..2..5....3..3....5..3....0..5....4..2....3..0....4..5....1..4....4..0....0..3
%e ..0..2....1..0....5..1....1..5....3..2....4..4....3..5....4..4....5..5....2..3
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 28 2011
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