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%I #20 Oct 16 2017 02:42:41
%S 3,7,31,37,97,139,157,199,211,229,271,307,331,337,367,379,439,499,547,
%T 577,601,607,619,691,727,811
%N A sequence of odd primes p such that 2p-1 is prime and no p is equal to any 2q-1 with q in the sequence.
%C Sequence used in conjunction with A001259 in the referenced articles.
%C It is not clear that this sequence is correct -- it certainly does not match the title. See A217199 for the correct version. - _T. D. Noe_, Sep 28 2012
%H A. Schinzel and Andrzej Wakulicz, <a href="http://matwbn.icm.edu.pl/ksiazki/aa/aa4/aa431.pdf">Sur l'équation phi(x+k)=phi(x), I.</a>, Acta Arith. 4 (1958), 181-184.
%H A. Schinzel and Andrzej Wakulicz, <a href="http://matwbn.icm.edu.pl/ksiazki/aa/aa5/aa546.pdf">Sur l'équation phi(x+k)=phi(x). II</a>. Acta Arith. 5 1959 425-426.
%Y Cf. A001259, A110581, A217199.
%K nonn
%O 1,1
%A _Michel Marcus_, Sep 27 2012
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