A230244 - OEIS

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A230244

Number of n X n 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero

0, 2, 34, 18218, 38111288, 575915716590, 57955254721687188 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A230250`
	LINKS	`Table of n, a(n) for n=1..7.`
	EXAMPLE	`Some solutions for n=3` `..0..3..0....0..1..0....0..3..2....0..1..2....0..1..0....0..3..2....0..1..0` `..1..0..1....1..2..1....1..2..1....3..0..3....3..2..1....1..0..3....3..2..3` `..2..3..2....2..3..0....0..3..0....2..3..2....2..3..0....2..3..2....2..1..0`
	CROSSREFS	`Sequence in context: A002782 A155205 A303444 * A045529 A293245 A077747` `Adjacent sequences: A230241 A230242 A230243 * A230245 A230246 A230247`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Oct 13 2013`
	STATUS	`approved`

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Last modified March 29 13:07 EDT 2023. Contains 361599 sequences. (Running on oeis4.)