A297525 - OEIS

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A297525

Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 3 neighboring 1s.

1, 276, 8931, 80436, 956810, 22251457, 424461759, 6257746155, 99189736172, 1760551954224, 30190892195574, 493945062481322, 8201194302960825, 138921386338813051, 2337797782100665953, 39010588017713112465 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Row 7 of A297519.`
	LINKS	`R. H. Hardin, Table of n, a(n) for n = 1..210`
	EXAMPLE	`Some solutions for n=4` `..0..1..0..0. .1..0..0..0. .1..1..0..0. .0..0..0..0. .0..1..1..1` `..1..0..0..0. .1..1..0..0. .1..0..1..1. .0..0..0..1. .0..1..0..0` `..0..0..0..1. .1..0..0..0. .0..0..0..1. .0..1..1..0. .0..0..0..0` `..0..0..1..0. .0..0..0..0. .0..1..0..1. .0..1..0..0. .0..0..1..0` `..0..0..0..0. .0..1..1..1. .0..0..1..1. .0..0..0..0. .1..1..0..0` `..0..0..0..0. .0..0..0..1. .0..0..0..0. .1..0..0..1. .0..0..1..1` `..0..0..0..0. .1..1..0..0. .0..0..1..1. .1..1..1..1. .0..0..0..1`
	CROSSREFS	`Cf. A297519.` `Sequence in context: A007246 A107080 A333049 * A169976 A297755 A166192` `Adjacent sequences: A297522 A297523 A297524 * A297526 A297527 A297528`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Dec 31 2017`
	STATUS	`approved`

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Last modified March 31 05:57 EDT 2023. Contains 361634 sequences. (Running on oeis4.)