1,1

For these numbers hold that both arithmetic means of distinct and all prime factors are integers or only one of these means is an integer (See A174894). See A176552, A175352, A176587.

Table of n, a(n) for n=1..64.

Sequence in context: A191848 A293205 A046687 * A078175 A213715 A078174

Adjacent sequences: A175415 A175416 A175417 * A175419 A175420 A175421

nonn

Jaroslav Krizek, May 09 2010

approved