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A201067 Number of nX3 0..6 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other 1

%I #5 Mar 31 2012 12:36:42

%S 35,35,514,2611,3937,50334,4448,381982,206357,1377351,2831603,1974341,

%T 20355511,1239614,73355614,25640082,134750988,236836508,134563397,

%U 1068791444,49395188,2697358626,852508061,3859642876,5707775509

%N Number of nX3 0..6 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other

%C Column 3 of A201072

%H R. H. Hardin, <a href="/A201067/b201067.txt">Table of n, a(n) for n = 1..58</a>

%e Some solutions for n=7

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

%e ..0..1..4....0..2..3....1..1..2....0..1..2....1..2..5....0..2..3....0..2..3

%e ..1..1..4....0..2..4....1..2..2....1..1..4....1..3..5....0..2..4....1..2..3

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

%e ..2..3..5....1..3..6....3..4..5....3..3..6....2..3..6....3..3..6....2..4..5

%e ..2..5..5....4..5..6....4..5..6....4..5..6....2..4..6....4..4..6....4..5..5

%e ..6..6..6....4..5..6....4..6..6....4..5..6....4..4..6....5..5..6....6..6..6

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 26 2011

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Last modified May 27 20:38 EDT 2024. Contains 372882 sequences. (Running on oeis4.)