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A219938 Number of nX7 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 nX7 array 0
84, 1660, 100761, 9073439, 871084602 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A219939

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A219476 A008359 A166847 * A271670 A098935 A297486

Adjacent sequences:  A219935 A219936 A219937 * A219939 A219940 A219941

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 01 2012

STATUS

approved

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Last modified May 26 17:16 EDT 2022. Contains 354092 sequences. (Running on oeis4.)