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A203549 Number of nX7 0..4 arrays with every nonzero element less than or equal to some NW, E or S neighbor 1
1, 5448482, 158110806032, 1791660443900385, 18555799450636433964, 218138773893328980719919, 2637221656906543119366072476, 31262034046818587403571213590974, 368265394744290722981036142149330527 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A203550

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..37

EXAMPLE

Some solutions for n=5

..4..2..2..1..0..0..2....4..1..4..1..3..0..1....1..4..2..3..3..4..1

..4..3..2..4..1..0..2....4..0..4..4..3..3..2....0..4..3..2..1..4..3

..4..1..2..4..0..0..2....4..4..1..2..2..0..3....3..4..1..0..3..4..0

..4..3..4..4..3..2..2....2..3..3..1..3..0..0....1..4..0..1..0..4..0

..4..4..3..4..1..3..2....2..2..1..0..3..3..0....3..4..4..2..3..4..4

CROSSREFS

Sequence in context: A263214 A125832 A206325 * A230793 A263197 A283652

Adjacent sequences:  A203546 A203547 A203548 * A203550 A203551 A203552

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 02 2012

STATUS

approved

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Last modified November 27 07:28 EST 2021. Contains 349365 sequences. (Running on oeis4.)