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Number of nX2 0..5 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other
1

%I #5 Mar 31 2012 12:36:41

%S 15,30,13,649,3247,1483,84463,395138,147370,10892006,61376744,

%T 26060323,1860718688,9722469665,3689916515,298977508446,1746612244800,

%U 731620635705,56300135952299,307084986199367,118048036603381

%N Number of nX2 0..5 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other

%C Column 2 of A200902

%H R. H. Hardin, <a href="/A200896/b200896.txt">Table of n, a(n) for n = 1..33</a>

%e Some solutions for n=3

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

%e ..2..3....1..4....1..4....2..5....1..5....2..4....2..5....1..3....3..5....1..5

%e ..4..5....3..5....2..5....3..4....3..4....1..5....1..4....4..5....2..4....2..4

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 23 2011