A251275 - OEIS

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A251275

Number of (n+1)X(n+1) 0..3 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element

230, 164800, 1497752279, 172919373209920, 253597772369472323328, 4724687679127024503784365440, 1118224116880857883546078105623321344, 3362121790823480902189703776276345356341787648 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Diagonal of A251283`
	LINKS	`R. H. Hardin, Table of n, a(n) for n = 1..9`
	EXAMPLE	`Some solutions for n=2` `..1..0..0....1..3..3....1..2..3....2..0..2....1..0..1....3..0..0....0..0..1` `..2..0..1....3..3..1....0..3..3....0..0..2....1..2..1....2..0..2....1..0..3` `..0..2..1....0..1..1....2..2..2....0..0..0....3..2..2....0..0..2....2..2..3`
	CROSSREFS	`Sequence in context: A231107 A231251 A051183 * A323321 A156742 A031965` `Adjacent sequences: A251272 A251273 A251274 * A251276 A251277 A251278`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Dec 01 2014`
	STATUS	`approved`

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Last modified December 7 08:24 EST 2022. Contains 358649 sequences. (Running on oeis4.)