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A200533 Number of nX7 0..2 arrays with every row and column running average nondecreasing rightwards and downwards 1

%I #5 Mar 31 2012 12:36:39

%S 87,1873,32556,494555,6820330,87098434,1056792824,12348422785,

%T 140068079857,1551453118671,16861973522704,180469353488204,

%U 1907201493832312,19944555935687461,206749466424763994

%N Number of nX7 0..2 arrays with every row and column running average nondecreasing rightwards and downwards

%C Column 7 of A200534

%H R. H. Hardin, <a href="/A200533/b200533.txt">Table of n, a(n) for n = 1..19</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 18 2011

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Last modified April 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)