id:A056350 - OEIS Search Results

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Number of primitive (period n) bracelets using exactly four different colored beads.

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0, 0, 0, 3, 24, 136, 612, 2616, 10480, 41364, 159780, 613919, 2341920, 8919204, 33905164, 128904660, 490213680, 1866117224, 7111777860, 27140327757, 103721217388, 396974621676, 1521577377012, 5840546872280 (list; graph; listen)

	OFFSET	`1,4`
	COMMENT	`Turning over will not create a new bracelet.`
	REFERENCES	`M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.`
	FORMULA	`Sum mu(d)*A056344(n/d) where d\|n.`
	CROSSREFS	`Cf. A056289.` `Sequence in context: A009137 A001089 A069515 this_sequence A056344 A125651 A043017` `Adjacent sequences: A056347 A056348 A056349 this_sequence A056351 A056352 A056353`
	KEYWORD	`nonn`
	AUTHOR	`Marks R. Nester (nesterm(AT)dpi.qld.gov.au)`

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Last modified September 5 19:27 EDT 2008. Contains 143485 sequences.

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