id:A081221 - OEIS Search Results

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Number of consecutive numbers >= n having at least one square divisor > 1.

+0
3

0, 0, 0, 1, 0, 0, 0, 2, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 2, 1, 0, 2, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 2, 1, 0, 0, 3, 2, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 2, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 2, 1, 0, 0, 0, 2, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 3, 2, 1, 0, 0, 0, 1, 0 (list; graph; listen)

	OFFSET	`1,8`
	COMMENT	`mu(k)=0 for n<=k<n+a(n) and mu(n+a(n))<>0, where mu=A008683 (Moebius function); a(n)*mu(n)=0; a(A068781(n))>0.`
	CROSSREFS	`Sequence in context: A116905 A115079 A025435 this_sequence A103840 A066301 A046660` `Adjacent sequences: A081218 A081219 A081220 this_sequence A081222 A081223 A081224`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Mar 10 2003`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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