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A201727 Number of nX6 0..4 arrays with rows and columns lexicographically nondecreasing and no element equal to the number of horizontal and vertical neighbors equal to itself 0
83, 64018, 144262866, 299927801278, 463016032498283, 545947219624185244 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A201729

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=2

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

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

CROSSREFS

Sequence in context: A097839 A268987 A087189 * A116263 A287686 A087532

Adjacent sequences:  A201724 A201725 A201726 * A201728 A201729 A201730

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 04 2011

STATUS

approved

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Last modified February 23 06:13 EST 2020. Contains 332159 sequences. (Running on oeis4.)