id:A082476 - OEIS Search Results

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a(n)=sum(d|n, mu(d)^2*tau(d)^2).

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1, 5, 5, 5, 5, 25, 5, 5, 5, 25, 5, 25, 5, 25, 25, 5, 5, 25, 5, 25, 25, 25, 5, 25, 5, 25, 5, 25, 5, 125, 5, 5, 25, 25, 25, 25, 5, 25, 25, 25, 5, 125, 5, 25, 25, 25, 5, 25, 5, 25, 25, 25, 5, 25, 25, 25, 25, 25, 5, 125, 5, 25, 25, 5, 25, 125, 5, 25, 25, 125, 5, 25, 5, 25, 25, 25, 25, 125 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`More generally : sum(d\|n, mu(d)^2*tau(d)^m)=(2^m+1)^omega(n)`
	FORMULA	`a(n)=5^omega(n); multiplicative with a(p^e)=5`
	PROGRAM	`(PARI) a(n)=5^omega(n)`
	CROSSREFS	`Cf. A074816.` `Sequence in context: A076407 A134701 A078097 this_sequence A024729 A046271 A046263` `Adjacent sequences: A082473 A082474 A082475 this_sequence A082477 A082478 A082479`
	KEYWORD	`mult,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 27 2003`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

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