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A203054 Number of nX5 0..5 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor 1
636, 4078368, 15517802234, 50221974160730, 168179371998322692, 570286671940304710894, 1927846292259028240187308, 6511535556285256453569433756, 21999909860835890200424895723594 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A203057

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..153

EXAMPLE

Some solutions for n=5

..4..2..5..1..2....0..0..3..0..1....2..5..4..4..0....3..2..0..2..0

..4..4..5..0..4....0..2..3..0..3....3..5..4..2..5....3..3..4..2..2

..4..1..3..5..4....4..1..0..4..3....4..4..4..0..5....3..4..5..3..2

..2..2..2..5..2....4..2..4..4..1....5..5..1..2..5....1..1..5..1..4

..1..4..4..1..0....2..3..3..4..1....4..3..5..5..5....1..3..4..4..4

CROSSREFS

Sequence in context: A253506 A202048 A251039 * A198774 A043483 A203042

Adjacent sequences:  A203051 A203052 A203053 * A203055 A203056 A203057

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 28 2011

STATUS

approved

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Last modified September 25 12:47 EDT 2020. Contains 337344 sequences. (Running on oeis4.)