id:A067808 - OEIS Search Results

Search: id:A067808

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Numbers n such that sigma(n)^2> 3*sigma(n^2).

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720, 1080, 1440, 1680, 1800, 2016, 2160, 2520, 2880, 3024, 3240, 3360, 3600, 3780, 3960, 4032, 4200, 4320, 4680, 5040, 5280, 5400, 5544, 5760, 6048, 6120, 6300, 6480, 6720, 6840, 7056, 7200, 7560, 7920, 8064, 8400, 8640, 9000, 9072, 9240, 9360, 9504 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`For every n>1 sigma(n)^2 > sigma(n^2)`
	CROSSREFS	`Cf. A065764.` `Adjacent sequences: A067805 A067806 A067807 this_sequence A067809 A067810 A067811` `Sequence in context: A068351 A067892 A137493 this_sequence A131663 A090392 A000805`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 07 2002`

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.

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