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A219285 Number of n X n arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X n array 0
2, 3, 19, 149, 1751, 35654, 1455308, 127423164, 23439798583 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A219291

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A201378 A241350 A032329 * A066227 A061490 A048827

Adjacent sequences:  A219282 A219283 A219284 * A219286 A219287 A219288

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 17 2012

STATUS

approved

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Last modified October 24 02:02 EDT 2021. Contains 348217 sequences. (Running on oeis4.)