id:A070288 - OEIS Search Results

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Sum omega(d)*omega(n/d); d divides n.

+0
1

0, 0, 0, 1, 0, 2, 0, 2, 1, 2, 0, 6, 0, 2, 2, 3, 0, 6, 0, 6, 2, 2, 0, 10, 1, 2, 2, 6, 0, 12, 0, 4, 2, 2, 2, 14, 0, 2, 2, 10, 0, 12, 0, 6, 6, 2, 0, 14, 1, 6, 2, 6, 0, 10, 2, 10, 2, 2, 0, 26, 0, 2, 6, 5, 2, 12, 0, 6, 2, 12, 0, 22, 0, 2, 6, 6, 2, 12, 0, 14, 3, 2, 0, 26, 2, 2, 2, 10, 0, 26, 2, 6, 2, 2, 2 (list; graph; listen)

	OFFSET	`1,6`
	PROGRAM	`(PARI) for(n=1, 100, print1(sumdiv(n, d, omega(n/d)*omega(d)), ", "))`
	CROSSREFS	`Sequence in context: A074398 A070824 A071459 this_sequence A117929 A107455 A039701` `Adjacent sequences: A070285 A070286 A070287 this_sequence A070289 A070290 A070291`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), May 12 2002`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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