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

%I #4 Feb 08 2014 06:31:39

%S 8770,180730,3903294,92508252,2218452183,54882960676,1356262078497,

%T 33916082423836,845731963650019,21196693893895575,530121293577636045,

%U 13289778263953793302,332729161674389415736,8340243441912084908931

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

%C Column 3 of A237488

%H R. H. Hardin, <a href="/A237484/b237484.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 08 2014