%I #2 Mar 30 2012 18:51:05

%S 1,2,5,7,11,13,17,19,23,29,31,37,38,41,43,47,53,58,59,61,65,67,71,73,

%T 74,77,79,82,83,85,86,89,91,97,101,103,106,107,109,113,127,131,133,

%U 134,137,139,145,146,149,151,157,163,167,173,178,179,181,185,187,191,193,197

%N Numbers m such that no square greater than 1 can be written as sum of distinct divisors of m.

%C A173493(a(n)) = 1;

%C A045344 is a subsequence, the primes except 3;

%C 2546 is the smallest term having more than two prime factors: 2546=2*19*67.

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Feb 20 2010