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

%I #4 Feb 05 2014 05:29:15

%S 4770,37858,316036,2836058,25995322,245347820,2348424370,22810197506,

%T 223516305332,2208156420722,21938009197806,219061001513516,

%U 2195886433761030,22089516443087562,222849010250257988

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

%C Column 3 of A237218

%H R. H. Hardin, <a href="/A237214/b237214.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 05 2014