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

Revision History for A296321 (Underlined text is an addition; strikethrough text is a ~~deletion~~.)
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A296321

Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 neighboring 1's.
(history; published version)

#6 by Wesley Ivan Hurt at Sun Apr 26 20:59:27 EDT 2020

STATUS

editing

approved

#5 by Wesley Ivan Hurt at Sun Apr 26 20:59:20 EDT 2020

NAME

Number of n X nXnn 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 neighboring 1s1's.

STATUS

approved

editing

#4 by R. H. Hardin at Sun Dec 10 11:42:44 EST 2017

STATUS

editing

approved

#3 by R. H. Hardin at Sun Dec 10 11:42:39 EST 2017

	NAME	`allocated for R. H. Hardin` `Number of nXn 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 neighboring 1s.`
	DATA	`1, 3, 11, 61, 853, 20088, 850404, 72224019, 11207386103, 3245575984755, 1784744625714267, 1830394475306895557, 3517200566091635085954, 12698075318404649075573041, 85871949097296276009847589332`
	OFFSET	`1,2`
	COMMENTS	`Diagonal of A296327.`
	EXAMPLE	`Some solutions for n=5` `..0..0..0..1..1. .0..0..0..0..0. .0..1..1..0..0. .0..0..0..1..1` `..0..0..1..0..1. .0..0..0..0..0. .1..0..1..0..0. .0..0..1..0..1` `..0..0..1..0..1. .0..1..1..0..0. .1..1..0..1..1. .0..0..1..1..0` `..0..1..0..0..1. .0..1..0..1..0. .0..0..0..1..0. .0..0..0..0..0` `..0..1..1..1..0. .0..0..1..1..0. .0..0..0..0..0. .0..0..0..0..0`
	CROSSREFS	`Cf. A296327.`
	KEYWORD	`allocated` `nonn`
	AUTHOR	`R. H. Hardin, Dec 10 2017`
	STATUS	`approved` `editing`

#2 by R. H. Hardin at Sun Dec 10 11:41:03 EST 2017

KEYWORD

allocating

allocated

#1 by R. H. Hardin at Sun Dec 10 11:41:03 EST 2017

Last modified August 29 11:24 EDT 2024. Contains 375516 sequences. (Running on oeis4.)