id:A077448 - OEIS Search Results

Search: id:A077448

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

+0
2

1, 36, 100, 196, 225, 441, 484, 676, 1089, 1156, 1225, 1444, 1521, 2116, 2601, 3025, 3249, 3364, 3844, 4225, 4761, 5476, 5929, 6724, 7225, 7396, 7569, 8281, 8649, 8836, 9025, 11236, 12321, 13225, 13924, 14161, 14884, 15129, 16641, 17689, 17956 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=A030229(n)^2`
	CROSSREFS	`Sequence in context: A044223 A044604 A030627 this_sequence A085986 A027603 A163246` `Adjacent sequences: A077445 A077446 A077447 this_sequence A077449 A077450 A077451`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Nov 30 2002`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

AT&T Labs Research