A175397 - OEIS

%I #5 Jan 26 2013 13:32:47

%S 1,6,10,12,14,18,22,24,26,28,30,34,36,38,40,46,48,52,54,56,58,62,66,

%T 70,72,74,75,80,82,86,88,90,94,96,98,100

%N Numbers such that both arithmetic means of distinct and all prime factors are not integers.

%C Subsequence of A176552, A175352 and A176587. See A174894.

%C Complement of A175418. [From _Jaroslav Krizek_, May 09 2010]

%e For a(13) = 36: 36 = 2^2*3^3; both (2+2+3+3)/4 and (2+3)/2 are not integers.

%K nonn

%O 1,2

%A _Jaroslav Krizek_, May 01 2010