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A219945 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 7Xn array 0
120, 2670, 248881, 20434119, 1523159314, 105577880961 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A219939

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=3

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

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

..2..1..1....1..1..3....0..0..0....2..1..2....2..1..2....2..1..1....0..1..2

..2..0..1....2..1..1....2..0..0....2..1..1....0..2..3....2..1..1....0..0..0

..2..0..0....1..2..2....2..1..1....2..1..1....0..0..0....0..0..3....0..0..0

..2..2..2....1..1..1....1..1..2....1..1..3....1..1..0....0..0..0....2..1..0

..2..2..3....3..1..1....1..1..1....1..1..1....3..2..1....1..0..0....2..1..1

CROSSREFS

Sequence in context: A000553 A126232 A105943 * A219834 A250651 A052721

Adjacent sequences:  A219942 A219943 A219944 * A219946 A219947 A219948

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 01 2012

STATUS

approved

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Last modified February 20 14:58 EST 2019. Contains 320327 sequences. (Running on oeis4.)