A205173 - OEIS

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A205173

Number of (n+1)X(n+1) 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards

256, 61320, 73775908, 249458849992, 3735895473961770 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Diagonal of A205181`
	LINKS	`Table of n, a(n) for n=1..5.`
	EXAMPLE	`Some solutions for n=4` `..3..1..3..1..3....3..3..2..3..0....0..2..0..3..0....0..3..3..0..1` `..3..3..3..3..3....0..1..2..1..3....2..0..3..1..3....0..0..0..0..1` `..3..2..3..2..3....3..3..3..3..1....2..2..2..3..2....1..0..0..3..1` `..3..3..3..3..3....0..1..2..1..3....0..3..2..3..2....3..0..1..0..1` `..2..3..2..3..3....3..3..3..3..2....2..1..3..3..3....3..0..3..3..2`
	CROSSREFS	`Sequence in context: A114850 A017440 A204302 * A205416 A017572 A189270` `Adjacent sequences: A205170 A205171 A205172 * A205174 A205175 A205176`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Jan 22 2012`
	STATUS	`approved`

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Last modified May 21 21:50 EDT 2013. Contains 225505 sequences.