Search: id:A050522
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%I A050522
%S A050522 19,79,1279,5119,20479,81919,1310719,21474836479,1407374883553279,
%T A050522 90071992547409919,23611832414348226068479,1784059615882449851322857461811868920478433279
%N A050522 Primes of form 5*2^n-1.
%H A050522 <a href="Sindx_Pri.html#riesel">Index entries for sequences of n such 
               that k*2^n-1 (or k*2^n+1) is prime</a>
%Y A050522 See A001770 for more terms.
%Y A050522 Sequence in context: A139941 A127270 A053665 this_sequence A071633 A044206 
               A044587
%Y A050522 Adjacent sequences: A050519 A050520 A050521 this_sequence A050523 A050524 
               A050525
%K A050522 nonn,nice
%O A050522 1,1
%A A050522 N. J. A. Sloane (njas(AT)research.att.com), Dec 29 1999

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