id:A082104 - OEIS Search Results

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Number of unique characteristic polynomials among all simple undirected graphs on n nodes.

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1

1, 2, 4, 11, 33, 151, 988, 11453, 247357 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Eric Weisstein's World of Mathematics, Characteristic Polynomial`
	CROSSREFS	`Cf. A000088.` `Sequence in context: A123450 A052431 A076316 this_sequence A099215 A089407 A071115` `Adjacent sequences: A082101 A082102 A082103 this_sequence A082105 A082106 A082107`
	KEYWORD	`nonn,hard,more`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com), Apr 03, 2003`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.