id:A066314 - OEIS Search Results

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Number of identity (asymmetric) bracelets (or necklaces) with n red or blue beads such that the beads switch colors when bracelet is turned over.

+0
1

1, 0, 1, 1, 3, 3, 9, 12, 28, 42, 93, 154, 315, 549, 1091, 1980, 3855, 7140, 13797, 25941, 49929, 94767, 182361, 348430, 671088, 1288350, 2485504, 4789134, 9256395, 17886951, 34636833, 67091520, 130150493, 252610440, 490853403 (list; graph; listen)

	OFFSET	`1,5`
	LINKS	`Index entries for sequences related to bracelets`
	FORMULA	`a(n)=A001037(n)-A066313(n).`
	CROSSREFS	`Sequence in context: A117153 A045810 A166720 this_sequence A083336 A091328 A138383` `Adjacent sequences: A066311 A066312 A066313 this_sequence A066315 A066316 A066317`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Dec 13 2001`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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