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%I #6 Sep 22 2016 05:44:01
%S 2,16,64,2048
%N Powers of 2 which are not the sum of divisors of any other number. Powers of 2 present in A007369.
%C The next term, 2^470, is too large to include.
%F a(n) = 2^A078426(n).
%Y Cf. A007369, A000203, A046528, A094502.
%K nonn
%O 1,1
%A _Labos Elemer_, Jun 02 2004