id:A056359 - OEIS Search Results

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Number of bracelet structures using exactly four different colored beads.

+0
2

0, 0, 0, 1, 2, 11, 33, 137, 478, 1851, 6845, 26148, 98406, 374010, 1416251, 5380907, 20440250, 77795428, 296384565, 1131011633, 4321964768, 16541275068, 63400061153, 243358803904, 935431121462, 3600520831215 (list; graph; listen)

	OFFSET	`1,5`
	COMMENT	`Turning over will not create a new bracelet. Permuting the colors of the beads will not change the structure.`
	REFERENCES	`M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.`
	FORMULA	`A056354(n)-A056353(n).`
	CROSSREFS	`Cf. A056297.` `Sequence in context: A034128 A034427 A056368 this_sequence A088306 A100109 A026961` `Adjacent sequences: A056356 A056357 A056358 this_sequence A056360 A056361 A056362`
	KEYWORD	`nonn`
	AUTHOR	`Marks R. Nester (nesterm(AT)dpi.qld.gov.au)`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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