A087983 - OEIS

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A087983

Number of different values taken by permanent of n X n (0,1)-matrix.

2, 3, 6, 16, 51, 220, 1179 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	LINKS	`Index entries for sequences related to binary matrices`
	EXAMPLE	`For a 4 X 4 matrix the 16 possible permanents and their multiplicieties are:` `{{0, 27713}, {1, 13032}, {2, 10800}, {3, 4992}, {4, 4254}, {5, 1440}, {6, 1536}, {7, 576}, {8, 648}, {9, 24}, {10, 288}, {11, 96}, {12, 48}, {14, 72}, {18, 16}, {24, 1}}`
	CROSSREFS	`Cf. A089477, A089479, A089472.` `Sequence in context: A089872 A006402 A145860 * A103593 A174118 A006449` `Adjacent sequences: A087980 A087981 A087982 * A087984 A087985 A087986`
	KEYWORD	`nonn,more`
	AUTHOR	`Wouter Meeussen (wouter.meeussen(AT)pandora.be), Oct 29 2003`
	EXTENSIONS	`a(6)=220 from Gordon Royle (gordon(AT)maths.uwa.edu.au), Nov 05 2003` `a(7) from Giovanni Resta (g.resta(AT)iit.cnr.it), Mar 29 2006`

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.