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A160513 Positive squarefree integers n such that, if n is the m-th squarefree integer (i.e., the m-th term of A005117), then n is also the m-th term of A000961 (the prime powers). 0
1, 2, 3, 7, 17, 19 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Is this sequence complete?

1 here is considered to be both the first squarefree integer and the first power of a prime.

LINKS

Table of n, a(n) for n=1..6.

CROSSREFS

Cf. A000961, A005117.

Sequence in context: A141795 A077322 A174359 * A154431 A256917 A089144

Adjacent sequences:  A160510 A160511 A160512 * A160514 A160515 A160516

KEYWORD

fini,more,nonn

AUTHOR

Leroy Quet, May 16 2009

EXTENSIONS

Definition rewritten by N. J. A. Sloane, May 21 2009

STATUS

approved

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Last modified November 21 22:32 EST 2017. Contains 295054 sequences.