id:A152218 - OEIS Search Results

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Numbers n such that sigma_2(n)*sigma_1(n)/sigma_0(n)=c, c is an integer.

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1, 4, 529, 2116, 2583, 3249, 3346, 6150 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`A001157(n)*A000203(n)/A000005(n) = c, c is an integer.`
	CROSSREFS	`Cf. A000005, A001157, A000203, A140480` `Sequence in context: A003393 A089668 A083284 this_sequence A152463 A159367 A012770` `Adjacent sequences: A152215 A152216 A152217 this_sequence A152219 A152220 A152221`
	KEYWORD	`easy,nonn`
	AUTHOR	`Ctibor O. Zizka (c.zizka(AT)email.cz), Nov 29 2008`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.