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A298630 Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero. 0
1, 5, 2, 15, 34, 163, 462, 2134, 7520, 41965, 217707, 1299151, 7616244, 53563038 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A298635.

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

Some solutions for n=5

..0..0..0..0..0. .0..0..1..0..0. .0..0..1..0..0. .0..0..0..1..1

..0..1..1..1..0. .0..1..0..1..0. .0..1..0..1..0. .1..0..1..0..1

..1..0..0..0..1. .1..1..0..1..0. .0..1..0..1..0. .1..1..1..0..0

..0..1..1..0..1. .0..1..0..1..0. .0..1..0..0..1. .1..0..1..0..1

..0..0..0..1..1. .0..0..1..0..0. .0..0..1..1..1. .0..0..0..1..1

CROSSREFS

Cf. A298635.

Sequence in context: A283242 A246209 A297979 * A248258 A279150 A213582

Adjacent sequences:  A298627 A298628 A298629 * A298631 A298632 A298633

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 23 2018

STATUS

approved

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Last modified November 28 01:24 EST 2021. Contains 349396 sequences. (Running on oeis4.)