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%I #18 Sep 13 2017 09:41:01
%S 20,25,27,28,33,35,44,45,48,49,52,54,55,56,60,63,66,68,69,70,72,76,77,
%T 80,81,84,87,88,90,91,92,95,96,98,99,100,102,104,105,108,110,112,116,
%U 117,119,120,123,124,125,126,129,132,135,136,138,140,141,143,144,145,147,148,150
%N Numbers m such that there is a prime divisor p > m of 2^m - 1 not of the form k*m + 1.
%C Contains no primes q and no doubled primes 2q.
%C Are there infinitely many such numbers?
%H Max Alekseyev, <a href="/A292199/b292199.txt">Table of n, a(n) for n = 1..829</a>
%Y Cf. A000040, A000225, A060443, A292188.
%Y Contains A291855.
%K nonn
%O 1,1
%A _Thomas Ordowski_, Sep 11 2017
%E Terms a(19) onward from _Max Alekseyev_, Sep 13 2017
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