1,1

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

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

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

Complement of A065200. Cf. A065202, A096156.

Sequence in context: A050421 A307517 A206552 * A136724 A316597 A329142

Adjacent sequences: A065198 A065199 A065200 * A065202 A065203 A065204

nonn

Reinhard Zumkeller, Oct 21 2001

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

approved