The On-Line Encyclopedia of Integer Sequences® (OEIS®)

The OEIS is supported by the many generous donors to the OEIS Foundation.

Revision History for A283949 (Underlined text is an addition; strikethrough text is a ~~deletion~~.)
Showing all changes.

A283949

Number of nX7 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.
(history; published version)

#4 by R. H. Hardin at Sat Mar 18 12:24:44 EDT 2017

STATUS

editing

approved

#3 by R. H. Hardin at Sat Mar 18 12:24:40 EDT 2017

LINKS

R. H. Hardin, <a href="/A283949/b283949.txt">Table of n, a(n) for n = 1..210</a>

#2 by R. H. Hardin at Sat Mar 18 12:24:23 EDT 2017

	NAME	`allocated for R. H. Hardin` `Number of nX7 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.`
	DATA	`0, 1926, 575456, 64614384, 6763514843, 667015216686, 62944601744067, 5782000278310300, 520411514987541560, 46113717734650843082, 4036254767838742279228, 349783657626468531519474`
	OFFSET	`1,2`
	COMMENTS	`Column 7 of A283950.`
	EXAMPLE	`Some solutions for n=2` `..0..1..0..0..1..1..1. .0..0..0..0..1..1..1. .0..1..1..1..1..1..1` `..0..0..1..1..1..0..1. .0..0..0..0..1..0..1. .0..1..0..1..1..0..0`
	CROSSREFS	`Cf. A283950.`
	KEYWORD	`allocated` `nonn`
	AUTHOR	`R. H. Hardin, Mar 18 2017`
	STATUS	`approved` `editing`

#1 by R. H. Hardin at Sat Mar 18 12:17:11 EDT 2017

	NAME	`allocated for R. H. Hardin`
	KEYWORD	`allocated`
	STATUS	`approved`

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 29 21:34 EDT 2024. Contains 375518 sequences. (Running on oeis4.)