1,2

a does not contain any arithmetic progression. The first 24 terms coincide with A053460.

Table of n, a(n) for n=1..72.

a(17) = 18 = 2 * 3^2, whereas A065201(4) = 28 = 2^2 * 7 as 2

< 7.

Cf. A005117, A053460, A065201, A065202.

Sequence in context: A316529 A329138 A334969 * A325361 A325397 A289812

Adjacent sequences: A065197 A065198 A065199 * A065201 A065202 A065203

nonn

Reinhard Zumkeller, Oct 21 2001

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

approved