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A076333 Squarefree kernels of nonsquarefree numbers. 2
2, 2, 3, 6, 2, 6, 10, 6, 5, 3, 14, 2, 6, 10, 22, 15, 6, 7, 10, 26, 6, 14, 30, 21, 2, 34, 6, 15, 38, 10, 3, 42, 22, 30, 46, 6, 14, 33, 10, 26, 6, 14, 58, 39, 30, 11, 62, 5, 42, 2, 66, 15, 34, 70, 6, 21, 74, 30, 38, 51, 78, 10, 6, 82, 42, 13, 57, 86, 35, 22, 30, 46, 94, 21, 6, 14, 66 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A007947(A013929(n)).

MATHEMATICA

f[n_] := If[(r = Times @@ FactorInteger[n][[;; , 1]]) < n, r , 0]; Select[f /@ Range[200], # > 0 &] (* Amiram Eldar, Sep 07 2020 *)

CROSSREFS

Cf. A007947, A013929.

Sequence in context: A207621 A209157 A284785 * A015051 A260389 A291372

Adjacent sequences:  A076330 A076331 A076332 * A076334 A076335 A076336

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Nov 06 2002

STATUS

approved

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Last modified December 1 09:28 EST 2020. Contains 338833 sequences. (Running on oeis4.)