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A235751 - OEIS
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Number of (n+1)X(3+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise
1

%I #4 Jan 15 2014 08:48:58

%S 26852,2349533,214506660,15727633969,1128357765708,70340776990634,

%T 4196024974985786,228047698147328939,11808293463027281095,

%U 571932616234637126758,26460991147607025733587,1162925364450912994914218

%N Number of (n+1)X(3+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise

%C Column 3 of A235752

%H R. H. Hardin, <a href="/A235751/b235751.txt">Table of n, a(n) for n = 1..69</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 15 2014