A097249 - OEIS

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A097249

a(n) = number of times we must iterate A097246, starting at n, before the result is squarefree.

0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 2, 0, 0, 0, 2, 0, 1, 0, 1, 0, 0, 0, 2, 1, 0, 1, 1, 0, 0, 0, 2, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 2, 0, 0, 2, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 3, 0, 0, 1, 2, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 3, 2, 0, 0, 2, 0, 0, 0, 1, 0, 2, 0, 1, 0, 0, 0, 2, 0, 1, 1, 1, 0, 0, 0, 1, 0 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,12`
	COMMENTS	`a(n)=Min{k: r(n,k)=r(n,k+1)}, where r(n,k)=A097246(r(n,k-1)), r(n,0)=n;` `a(A005117(n))=0; a(A097250(n))=n and a(m)<n for m < A097250(n).`
	CROSSREFS	`Cf. A097246, A005117, A097250.` `Sequence in context: A104194 A035153 A069847 * A112313 A172246 A087893` `Adjacent sequences: A097246 A097247 A097248 * A097250 A097251 A097252`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 03 2004`
	EXTENSIONS	`Edited by Sam Alexander (amnalexander(AT)yahoo.com), Jan 05 2005`

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Last modified February 15 03:58 EST 2012. Contains 205694 sequences.