A235311 - OEIS

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A235311

Number of (n+1) X (n+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7 (constant-stress 1 X 1 tilings).

112, 1120, 5968, 40144, 184144, 1062832, 4632208, 24862768, 106979152, 553292080, 2391038608 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..11.`
	EXAMPLE	`Some solutions for n=4:` `6 1 4 0 5 0 5 0 6 3 5 2 5 3 6 4 2 4 2 5` `4 6 2 5 3 2 0 2 1 5 1 5 1 6 2 1 6 1 6 2` `6 1 4 0 5 0 5 0 6 3 5 2 5 3 6 3 1 3 1 4` `4 6 2 5 3 3 1 3 2 6 0 4 0 5 1 1 6 1 6 2` `6 1 4 0 5 0 5 0 6 3 5 2 5 3 6 3 1 3 1 4`
	CROSSREFS	`Diagonal of A235319.` `Sequence in context: A206311 A343372 A330418 * A008430 A249004 A249469` `Adjacent sequences: A235308 A235309 A235310 * A235312 A235313 A235314`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Jan 05 2014`
	STATUS	`approved`

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Last modified August 16 05:55 EDT 2022. Contains 356160 sequences. (Running on oeis4.)