A069714 - OEIS

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A069714

Least integer such that quotient q=[sigma(n)-n]/[n-phi(n)] defining A068418 equals n.

2, 12, 1320, 851760 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`10^11 < a(5) <= 124176229632000. - Donovan Johnson, Oct 22 2011`
	FORMULA	`a(n)=Min{x; A001065[x]/A051953[x]=n})`
	CROSSREFS	`Cf. A068414, A068418, A001065, A051953, A000010, A000203.` `Sequence in context: A138486 A022482 A081701 * A176391 A123743 A111180` `Adjacent sequences: A069711 A069712 A069713 * A069715 A069716 A069717`
	KEYWORD	`more,nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Apr 02 2002`

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.