A209856 - OEIS

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A209856

1/4 the number of (n+1)X7 0..3 arrays with every 2X2 subblock having one or four distinct clockwise edge differences

492373, 155490654, 47417927307, 14741920546390, 4558499131132306, 1413503057063618368, 437706800031436404447, 135637740882655309176164, 42015985984488346140563741, 13017745880887035269283799043 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Column 6 of A209858`
	LINKS	`R. H. Hardin, Table of n, a(n) for n = 1..210`
	EXAMPLE	`Some solutions for n=4` `..1..1..0..3..2..3..3....1..0..3..2..3..1..0....3..2..1..3..1..3..2` `..0..3..2..2..0..2..0....0..2..2..0..3..0..2....3..0..2..1..2..1..3` `..1..0..2..2..3..2..3....3..0..3..0..1..3..2....2..2..1..3..1..3..0` `..3..0..3..0..3..0..2....2..2..2..2..0..3..0....3..0..2..1..2..1..3` `..0..2..2..2..2..0..3....2..2..2..2..3..2..0....3..2..1..3..1..3..2`
	CROSSREFS	`Sequence in context: A251972 A034629 A109914 * A234822 A082248 A166196` `Adjacent sequences: A209853 A209854 A209855 * A209857 A209858 A209859`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Mar 14 2012`
	STATUS	`approved`

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Last modified December 10 19:44 EST 2023. Contains 367717 sequences. (Running on oeis4.)