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A281604 Number of n X 7 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. 0
224, 6596, 302304, 15975093, 839574485, 44428349137, 2352459742664, 124612725916938, 6601564375598261, 349739353333596632 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A281605.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=2

..0..1..2..0..2..0..2. .0..0..1..0..2..1..0. .0..1..0..1..2..0..1

..1..0..2..0..2..1..1. .1..2..1..0..2..1..2. .0..2..2..1..0..2..1

CROSSREFS

Cf. A281605.

Sequence in context: A032802 A224431 A280858 * A007771 A229459 A051367

Adjacent sequences:  A281601 A281602 A281603 * A281605 A281606 A281607

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 25 2017

STATUS

approved

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Last modified January 19 21:38 EST 2022. Contains 350466 sequences. (Running on oeis4.)