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A097249 a(n) = number of times we must iterate A097246, starting at n, before the result is squarefree. 1
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.