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A065201 Numbers having a non-maximal prime-factor with exponent greater than 1. 3
12, 20, 24, 28, 36, 40, 44, 45, 48, 52, 56, 60, 63, 68, 72, 76, 80, 84, 88, 90, 92, 96, 99, 100, 104, 108, 112, 116, 117, 120, 124, 126, 132, 135, 136, 140, 144, 148, 152, 153, 156, 160, 164, 168, 171, 172, 175, 176, 180, 184, 188, 189, 192, 196, 198, 200 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

If n is a member so is every positive multiple of n. The primitive elements are A096156.

LINKS

Table of n, a(n) for n=1..56.

EXAMPLE

a(4) = 28 = 2^2 * 7 as 2 < 7.

CROSSREFS

Complement of A065200. Cf. A065202, A096156.

Sequence in context: A050421 A307517 A206552 * A136724 A316597 A329142

Adjacent sequences:  A065198 A065199 A065200 * A065202 A065203 A065204

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Oct 21 2001

EXTENSIONS

Edited by Franklin T. Adams-Watters, Oct 27 2006

STATUS

approved

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Last modified November 12 22:16 EST 2019. Contains 329079 sequences. (Running on oeis4.)