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A201213 Number of nX5 0..3 arrays with every row and column running average nondecreasing rightwards and downwards.

%I A201213 #7 Jul 22 2025 16:09:28
%S A201213 110,3318,79739,1692945,33635880,638359663,11689716107,207621805136,
%T A201213 3594844603992,60914727372933,1013396766898715,16591453817563704,
%U A201213 267827348618612139,4269426979477614558,67301147695731132425
%N A201213 Number of nX5 0..3 arrays with every row and column running average nondecreasing rightwards and downwards.
%C A201213 Column 5 of A201216
%H A201213 R. H. Hardin, <a href="/A201213/b201213.txt">Table of n, a(n) for n = 1..18</a>
%e A201213 Some solutions for n=3
%e A201213 ..0..0..0..0..0....0..0..0..0..2....0..0..0..3..1....0..1..2..3..3
%e A201213 ..0..0..3..3..2....1..2..3..3..3....1..2..2..3..2....1..2..3..3..3
%e A201213 ..2..2..3..3..3....3..3..3..3..3....1..3..2..3..3....2..2..3..3..3
%K A201213 nonn
%O A201213 1,1
%A A201213 _R. H. Hardin_ Nov 28 2011