id:A045674 - OEIS Search Results

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2n-bead balanced binary necklaces, equivalent to reverse, complement and reversed complement.

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1, 1, 2, 2, 4, 4, 6, 8, 12, 16, 20, 32, 38, 64, 72, 128, 140, 256, 272, 512, 532, 1024, 1056, 2048, 2086, 4096, 4160, 8192, 8264, 16384, 16512, 32768, 32908, 65536, 65792, 131072, 131344, 262144, 262656, 524288, 524820, 1048576, 1049600 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`Index entries for sequences related to necklaces`
	FORMULA	`a(2n) = a(n) + 2^(n-1), a(2n+1) = 2^n. - Ralf Stephan (ralf(AT)ark.in-berlin.de), Nov 01 2003`
	CROSSREFS	`Cf. A045654.` `Sequence in context: A094858 A161203 A029940 this_sequence A143483 A131733 A128745` `Adjacent sequences: A045671 A045672 A045673 this_sequence A045675 A045676 A045677`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 17 13:29 EST 2009. Contains 170826 sequences.

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