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A203062 Number of nX4 0..6 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor 1
252, 491953, 608893191, 647485600638, 710826096063039, 791448514067936533, 877818049790930479334, 972407155723593469149291, 1077696680991913000461769509, 1194519944070007772038761238940 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A203066

LINKS

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

EXAMPLE

Some solutions for n=5

..1..5..1..4....2..2..2..1....1..6..5..1....3..0..6..0....4..5..4..4

..3..5..4..4....4..5..3..1....2..6..3..3....4..4..6..5....2..6..6..6

..5..0..2..3....0..5..0..3....4..4..5..1....2..4..6..0....2..2..4..6

..5..6..6..5....6..5..0..3....0..0..5..2....5..2..6..1....2..0..5..4

..4..1..0..1....6..0..0..0....4..4..4..1....5..1..5..1....3..5..5..5

CROSSREFS

Sequence in context: A179714 A109929 A295441 * A259452 A177302 A177303

Adjacent sequences:  A203059 A203060 A203061 * A203063 A203064 A203065

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 28 2011

STATUS

approved

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Last modified November 27 16:35 EST 2021. Contains 349394 sequences. (Running on oeis4.)