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A087233 a(n)=floor[sigma[A002110(n)]/A002110(n)]; integer quotient of divisor-sum of primorial numbers and primorials. 0
1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

MATHEMATICA

q[x_] := Apply[Times, Table[Prime[w], {w, 1, x}]]; q[0]=1; Table[Floor[DivisorSigma[1, a=q[u]]/q[u]//N], {u, 1, 300}]

CROSSREFS

Cf. A000203, A002110.

Sequence in context: A111656 A165118 A025423 * A104147 A052146 A097882

Adjacent sequences:  A087230 A087231 A087232 * A087234 A087235 A087236

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Sep 01 2003

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Last modified February 17 09:41 EST 2012. Contains 206009 sequences.