id:A006608 - OEIS Search Results

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Number of n-node graphs not determined by their spectra.
(Formerly M1981)

+0
1

0, 0, 0, 0, 2, 10, 110, 1722, 51039 (list; graph; listen)

	OFFSET	`1,5`
	REFERENCES	`C. Godsil and B. D. McKay, Some computational results on the spectra of graphs, pp. 73-92 of Combinatorial Mathematics IV (Adelaide 1975), Lect. Notes Math., 560 (1976).`
	CROSSREFS	`Adjacent sequences: A006605 A006606 A006607 this_sequence A006609 A006610 A006611` `Sequence in context: A003222 A003167 A062412 this_sequence A066205 A113147 A062499`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.