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%I #5 Aug 11 2014 22:46:10
%S 1128,7544,56752,471588,4167736,38817072,375021656,3729166264,
%T 37856371660,390487433404,4075963878136,42940176794836,
%U 455574781777652,4860153197230628,52070924104772852,559748945641992408
%N Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock equal
%C Column 2 of A237299
%H R. H. Hardin, <a href="/A237294/b237294.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A237294/a237294.txt">Empirical recurrence of order 53</a>
%F Empirical recurrence of order 53 (see link above)
%e Some solutions for n=3
%e ..2..1..0....1..2..1....2..3..1....2..1..3....0..0..1....1..1..0....3..1..2
%e ..0..0..2....2..1..2....3..3..2....2..3..1....2..2..3....2..3..1....1..0..0
%e ..0..1..0....0..1..0....2..3..3....2..3..1....1..3..2....0..0..1....1..3..2
%e ..0..0..0....0..1..2....0..2..3....1..2..0....3..1..0....1..0..0....1..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 06 2014
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