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Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock equal
1

%I #4 Feb 11 2014 12:18:59

%S 1120,6964,44648,305054,2123660,15253914,111492872,834134686,

%T 6338273516,49073750056,384947250680,3064361417896,24646217823714,

%U 200415626583528,1642220553940964,13562290810572598,112611292640858902

%N Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock equal

%C Column 2 of A237694

%H R. H. Hardin, <a href="/A237689/b237689.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

%e ..2..0..1....3..2..3....3..0..3....3..2..2....0..0..2....2..2..1....0..1..2

%e ..0..2..3....0..3..0....2..1..2....2..1..3....1..2..3....1..2..0....3..0..3

%e ..3..3..0....0..1..2....3..2..1....2..1..1....0..2..0....2..2..1....2..1..2

%e ..0..2..1....0..3..0....0..3..0....3..2..2....3..2..3....2..1..1....3..0..3

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 11 2014