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A203053 Number of nX4 0..5 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor 1
161, 177290, 125838722, 78243755382, 50221974160730, 32577032228308750, 21056749683696452598, 13600371239866122117034, 8787864979191134277097374, 5678542289359508570256255314, 3669202681086636879838661622572 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A203057

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Sequence in context: A272355 A278891 A232294 * A232367 A232308 A232458

Adjacent sequences:  A203050 A203051 A203052 * A203054 A203055 A203056

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 28 2011

STATUS

approved

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Last modified November 27 21:22 EST 2020. Contains 338683 sequences. (Running on oeis4.)