id:A122839 - OEIS Search Results

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Numbers such that Sigma(m)*UnitarySigma(m)= k*UnitaryPhi(m)^2, for some integer k.

+0
2

1, 2, 3, 6, 14, 15, 30, 35, 42, 70, 78, 105, 190, 210, 312, 357, 418, 570, 714, 910, 1045, 1254, 1428, 2090, 2730 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Terms which are square-free appear on A121556.`
	CROSSREFS	`Cf. A121556.` `Sequence in context: A146000 A134737 A030733 this_sequence A121556 A123041 A078557` `Adjacent sequences: A122836 A122837 A122838 this_sequence A122840 A122841 A122842`
	KEYWORD	`nonn`
	AUTHOR	`Yasutoshi Kohmoto zbi74583(AT)boat.zero.ad.jp, Oct 23 2006`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.