A227384 - OEIS

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A227384

Number of nX5 0,1 arrays indicating 2X2 subblocks of some larger (n+1)X6 binary array having a sum of one, with rows and columns of the latter in lexicographically nondecreasing order

6, 56, 587, 6160, 61127, 550010, 4450124, 32473856, 215116595, 1303420926, 7278846827, 37731073135, 182726436203, 831526393503, 3573916903775, 14573693121509, 56609147953260, 210199678971798, 748463901892529 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Column 5 of A227385`
	LINKS	`R. H. Hardin, Table of n, a(n) for n = 1..87` `R. H. Hardin, Empirical polynomial of degree 39`
	FORMULA	`Empirical polynomial of degree 39 (see link above)`
	EXAMPLE	`Some solutions for n=4` `..1..0..0..0..0....0..1..0..0..0....0..0..0..1..0....0..1..0..0..0` `..0..0..0..1..0....1..0..0..1..1....0..0..1..0..0....1..0..0..1..1` `..0..0..1..0..1....0..0..1..1..0....0..1..0..0..0....0..0..1..1..1` `..0..1..1..1..1....0..0..1..1..1....0..0..1..1..0....0..0..0..0..0`
	CROSSREFS	`Sequence in context: A092655 A099140 A048348 * A199755 A025749 A297705` `Adjacent sequences: A227381 A227382 A227383 * A227385 A227386 A227387`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Jul 09 2013`
	STATUS	`approved`

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Last modified January 17 11:47 EST 2021. Contains 340240 sequences. (Running on oeis4.)