A297512 - OEIS

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A297512

Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s.

1, 2735, 53175, 573119, 35919085, 1272836591, 28914051279, 949224569894, 32507021089982, 940396282368163, 28523594741249476, 910897573503281049, 27940827448011878850, 852581385081080135117, 26505475722899552411184 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Row 7 of A297506.`
	LINKS	`R. H. Hardin, Table of n, a(n) for n = 1..210`
	EXAMPLE	`Some solutions for n=3` `..0..1..0. .0..0..0. .0..0..1. .0..1..1. .0..1..1. .0..1..1. .0..0..1` `..1..0..0. .1..1..1. .0..1..0. .1..0..0. .1..0..0. .0..0..1. .0..1..0` `..0..0..0. .0..0..0. .0..0..1. .0..0..0. .0..1..1. .0..0..0. .0..0..1` `..1..0..0. .0..0..0. .0..1..1. .0..1..1. .0..1..0. .0..1..1. .0..1..0` `..1..1..0. .0..0..0. .0..1..0. .0..0..0. .0..0..1. .1..0..0. .0..0..1` `..0..0..0. .0..0..1. .1..1..0. .1..1..1. .1..0..1. .1..1..0. .1..0..0` `..0..1..1. .1..1..0. .1..0..0. .0..1..0. .0..1..0. .0..0..0. .0..1..0`
	CROSSREFS	`Cf. A297506.` `Sequence in context: A045155 A251989 A251985 * A297726 A122473 A253994` `Adjacent sequences: A297509 A297510 A297511 * A297513 A297514 A297515`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Dec 31 2017`
	STATUS	`approved`

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Last modified March 28 20:24 EDT 2023. Contains 361596 sequences. (Running on oeis4.)