A070306 - OEIS

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A070306

a(n)=2phi(n)/2^omega(n).

1, 2, 2, 4, 1, 6, 4, 6, 2, 10, 2, 12, 3, 4, 8, 16, 3, 18, 4, 6, 5, 22, 4, 20, 6, 18, 6, 28, 2, 30, 16, 10, 8, 12, 6, 36, 9, 12, 8, 40, 3, 42, 10, 12, 11, 46, 8, 42, 10, 16, 12, 52, 9, 20, 12, 18, 14, 58, 4, 60, 15, 18, 32, 24, 5, 66, 16, 22, 6, 70, 12, 72, 18, 20, 18, 30, 6, 78, 16 (list; graph; refs; listen; history; internal format)

	OFFSET	`2,2`
	COMMENTS	`Always an integer.`
	LINKS	`S. R. Finch and Pascal Sebah, Squares and Cubes Modulo n (arXiv:math.NT/0604465).`
	PROG	`(PARI) for(n=2, 100, print1(2*eulerphi(n)/2^omega(n), ", "))`
	CROSSREFS	`Sequence in context: A116588 A069922 A072211 * A014665 A055035 A204595` `Adjacent sequences: A070303 A070304 A070305 * A070307 A070308 A070309`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), May 12 2002`

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Last modified February 15 16:39 EST 2012. Contains 205823 sequences.