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
Leroy Quet, May 16 2009
Definition rewritten by N. J. A. Sloane, May 21 2009