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A299002 Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero. 0
1, 8, 94, 1977, 111695, 9369586, 1591404390, 667156890263, 490770543899625 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A299008.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A299008.

Sequence in context: A121161 A098269 A010565 * A299669 A080208 A297857

Adjacent sequences:  A298999 A299000 A299001 * A299003 A299004 A299005

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 31 2018

STATUS

approved

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Last modified October 1 04:05 EDT 2022. Contains 357134 sequences. (Running on oeis4.)