A087692 - OEIS

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A087692

Number of cubes in multiplicative group modulo n.

1, 1, 2, 2, 4, 2, 2, 4, 2, 4, 10, 4, 4, 2, 8, 8, 16, 2, 6, 8, 4, 10, 22, 8, 20, 4, 6, 4, 28, 8, 10, 16, 20, 16, 8, 4, 12, 6, 8, 16, 40, 4, 14, 20, 8, 22, 46, 16, 14, 20, 32, 8, 52, 6, 40, 8, 12, 28, 58, 16, 20, 10, 4, 32, 16, 20, 22, 32, 44, 8, 70, 8, 24, 12, 40, 12, 20, 8, 26, 32, 18, 40 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	COMMENTS	`Cubic analog of A046073. - S. R. Finch (Steven.Finch(AT)inria.fr), Mar 01 2006`
	LINKS	`S. R. Finch and Pascal Sebah, Squares and Cubes Modulo n (arXiv:math.NT/0604465).`
	FORMULA	`a(n) = phi(n) / A060839(n).`
	CROSSREFS	`Cf. A060839, A046073.` `Sequence in context: A073103 A069177 A077659 * A093621 A143230 A072301` `Adjacent sequences: A087689 A087690 A087691 * A087693 A087694 A087695`
	KEYWORD	`mult,nonn`
	AUTHOR	`Yuval Dekel (dekelyuval(AT)hotmail.com), Sep 27 2003`
	EXTENSIONS	`More terms from S. R. Finch (Steven.Finch(AT)inria.fr), Mar 01 2006`

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Last modified February 17 23:58 EST 2012. Contains 206085 sequences.