id:A032198 - OEIS Search Results

Search: id:A032198

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"CIK" (necklace, indistinct, unlabeled) transform of 1,2,3,4...

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1, 3, 6, 13, 25, 58, 121, 283, 646, 1527, 3601, 8678, 20881, 50823, 124054, 304573, 750121, 1855098, 4600201, 11442085, 28527446, 71292603, 178526881, 447919418, 1125750145, 2833906683, 7144450566, 18036423973 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Index entries for sequences related to necklaces` `C. G. Bower, Transforms (2)`
	FORMULA	`1/nSum_{d divides n} phi(n/d)A004146(d). - Vladeta Jovovic (vladeta(AT)eunet.rs), Feb 15 2003`
	CROSSREFS	`Cf. A032170.` `Equals A005594(n)-1.` `Sequence in context: A005116 A121349 A074890 this_sequence A079941 A019300 A072762` `Adjacent sequences: A032195 A032196 A032197 this_sequence A032199 A032200 A032201`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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