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A087267 a(n)=GCD[n,pi[n]]=GCD[n, A000720(n)]. 1
1, 1, 1, 2, 1, 3, 1, 4, 1, 2, 1, 1, 1, 2, 3, 2, 1, 1, 1, 4, 1, 2, 1, 3, 1, 1, 9, 1, 1, 10, 1, 1, 11, 1, 1, 1, 1, 2, 3, 4, 1, 1, 1, 2, 1, 2, 1, 3, 1, 5, 3, 1, 1, 2, 1, 8, 1, 2, 1, 1, 1, 2, 9, 2, 1, 6, 1, 1, 1, 1, 1, 4, 1, 1, 3, 1, 7, 3, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 6, 1, 4, 3, 2, 1, 24, 1, 1, 1, 25, 1, 2, 1 (list; graph; refs; listen; history; internal format)
OFFSET

1,4

MATHEMATICA

Table[GCD[w, PrimePi[w]], {w, 1, 256}]

CROSSREFS

Cf. A007053, A000720, A087266, A057809.

Sequence in context: A142593 A102547 A177812 * A128267 A028920 A055396

Adjacent sequences:  A087264 A087265 A087266 * A087268 A087269 A087270

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Sep 16 2003

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.