id:A076234 - OEIS Search Results

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Numbers n such that Sigma[1,n]/n, Sigma[3,n]/n, Sigma[5,n]/n and Sigma[7,n]/n are integers.

+0
3

1, 6, 120, 672, 30240, 32760, 33550336, 459818240, 1379454720, 8589869056, 31998395520, 51001180160 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A007691, A046763, A055709, A076231, A076233.` `Cf. A066289 (n divides sigma_k(n) for all odd k).` `Sequence in context: A066581 A054776 A076231 this_sequence A066289 A115678 A048604` `Adjacent sequences: A076231 A076232 A076233 this_sequence A076235 A076236 A076237`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Oct 04 2002`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.