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A219513 Number of n X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X n array 0
2, 3, 11, 68, 620, 9292, 241413, 12385870, 1316975534, 278163891037 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A219519

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A066046 A065597 A256394 * A001052 A184310 A301347

Adjacent sequences:  A219510 A219511 A219512 * A219514 A219515 A219516

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 21 2012

STATUS

approved

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Last modified October 18 17:12 EDT 2019. Contains 328186 sequences. (Running on oeis4.)