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%I #4 Jan 18 2014 13:59:27
%S 306,1126,3744,12544,41844,140716,471308,1580152,5294132,17749124,
%T 59488776,199400040,668327516,2240142740,7508500744,25167109004,
%U 84355063048,282742241052,947697217680,3176499039060,10647009866132
%N Number of (n+1)X(2+1) 0..2 arrays colored with the sum of the maximum and minimum values of each 2X2 subblock
%C Column 2 of A236018
%H R. H. Hardin, <a href="/A236012/b236012.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 5*a(n-2) +10*a(n-3) +26*a(n-4) +33*a(n-5) +11*a(n-6) -9*a(n-7) -7*a(n-8) -2*a(n-9) for n>11
%e Some solutions for n=5
%e ..2..2..0....2..2..0....0..1..2....1..2..0....1..1..2....2..0..1....1..2..1
%e ..1..2..2....2..1..1....1..1..1....1..1..0....0..0..1....2..1..0....2..1..0
%e ..0..1..2....0..1..2....1..1..0....1..1..0....2..1..0....1..1..2....0..0..1
%e ..0..0..0....1..1..0....2..2..2....1..2..1....2..2..1....1..1..2....0..1..2
%e ..2..1..1....1..1..0....0..1..2....0..1..2....0..1..2....0..0..1....1..2..1
%e ..1..2..0....0..0..2....0..1..0....0..0..0....0..0..2....2..0..0....2..2..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 18 2014
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