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A299582 Number of n X n 0..1 arrays with every element equal to 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. 0
0, 4, 1, 84, 2170, 38420, 12345692, 5383097328, 3979108348246 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A299588.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A299588.

Sequence in context: A100864 A295178 A255192 * A211341 A280620 A164797

Adjacent sequences:  A299579 A299580 A299581 * A299583 A299584 A299585

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 13 2018

STATUS

approved

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Last modified September 19 15:57 EDT 2020. Contains 337178 sequences. (Running on oeis4.)