id:A077438 - OEIS Search Results

Search: id:A077438

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Numbers n such that sum( d|n : mu(d)mu(n/d)^2) = -1.

+0
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4, 9, 25, 49, 121, 169, 289, 361, 529, 841, 900, 961, 1369, 1681, 1764, 1849, 2209, 2809, 3481, 3721, 4356, 4489, 4900, 5041, 5329, 6084, 6241, 6889, 7921, 9409, 10201, 10404, 10609, 11025, 11449, 11881, 12100, 12769, 12996, 16129, 16900 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=A030059(n)^2`
	CROSSREFS	`Sequence in context: A158145 A082180 A068999 this_sequence A001248 A052043 A030146` `Adjacent sequences: A077435 A077436 A077437 this_sequence A077439 A077440 A077441`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Nov 30 2002`

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.

AT&T Labs Research