id:A056299 - OEIS Search Results

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Number of n-bead necklace structures using exactly six different colored beads.

+0
3

0, 0, 0, 0, 0, 1, 3, 36, 296, 2303, 16317, 110462, 717024, 4532105, 28046285, 170938814, 1029749994, 6149327905, 36477979041, 215304158916, 1265984738264, 7422971231829, 43433472086235, 253759842223290 (list; graph; listen)

	OFFSET	`1,7`
	COMMENT	`Turning over the necklace is not allowed. Colors may be permuted without changing the necklace structure.`
	REFERENCES	`M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.`
	FORMULA	`A056294(n)-A056293(n).`
	CROSSREFS	`Cf. A056286.` `Adjacent sequences: A056296 A056297 A056298 this_sequence A056300 A056301 A056302` `Sequence in context: A127960 A005446 A056307 this_sequence A073980 A034860 A003691`
	KEYWORD	`nonn`
	AUTHOR	`Marks R. Nester (nesterm(AT)dpi.qld.gov.au)`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

AT&T Labs Research