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%I #5 Aug 11 2014 22:46:09
%S 474,4176,37018,334180,2988228,26755684,239823278,2152052046,
%T 19284072120,172791130750,1548885972816,13886350823992,
%U 124465875300538,1115550628999210,9999316448921006,89632910699558058,803421988230512594
%N Number of (n+1)X(2+1) 0..2 arrays colored with the maximum plus the upper median plus the minimum of every 2X2 subblock
%C Column 2 of A236640
%H R. H. Hardin, <a href="/A236636/b236636.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A236636/a236636.txt">Empirical recurrence of order 72</a>
%F Empirical recurrence of order 72 (see link above)
%e Some solutions for n=3
%e ..0..0..2....1..0..1....2..2..0....1..2..0....0..2..2....2..0..0....1..2..2
%e ..1..1..0....1..0..0....1..1..1....2..1..2....0..1..2....2..1..1....1..1..1
%e ..1..1..1....2..1..1....1..2..2....1..1..2....1..0..0....0..1..2....0..0..2
%e ..2..2..1....0..2..2....1..0..0....1..0..1....2..0..2....2..2..1....0..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 29 2014