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A200775 Number of nX6 0..2 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 0
6, 31, 217, 1806, 13422, 91755, 633413, 4472626, 30905995, 209517906, 1388328518, 9240921228, 61120602235, 401793563633, 2619241322237, 17009669381881, 110033650331158, 709134941588286 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A200777

LINKS

Table of n, a(n) for n=1..18.

EXAMPLE

Some solutions for n=4

..0..0..0..0..1..1....0..0..0..0..0..1....0..0..0..0..0..0....0..0..0..0..0..1

..0..0..2..1..2..1....0..1..1..2..2..2....0..1..2..1..1..1....0..1..2..1..2..2

..0..2..1..2..2..2....0..2..1..1..1..2....0..2..1..1..1..2....0..1..1..2..1..2

..0..1..1..1..2..2....0..2..1..1..2..2....1..2..2..2..2..2....0..1..2..1..2..2

CROSSREFS

Sequence in context: A199320 A097176 A121754 * A244255 A299550 A208594

Adjacent sequences:  A200772 A200773 A200774 * A200776 A200777 A200778

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 22 2011

STATUS

approved

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Last modified August 18 01:39 EDT 2019. Contains 326059 sequences. (Running on oeis4.)