1,2

Is this sequence complete?

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

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

Cf. A000961, A005117.

Sequence in context: A141795 A077322 A174359 * A154431 A256917 A089144

Adjacent sequences: A160510 A160511 A160512 * A160514 A160515 A160516

fini,more,nonn

Leroy Quet, May 16 2009

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

approved