%I A053363
%S A053363 1,5,181,257,469,1541,2857,3521,14245
%N A053363 Numbers n such that 293*2^n+1 is prime.
%H A053363 Ray Ballinger and Wilfrid Keller, <a href="http://www.prothsearch.net/
               riesel.html">List of primes k.2^n + 1 for k < 300</a>
%H A053363 Wilfrid Keller, <a href="http://www.prothsearch.net/riesel2.html">List 
               of primes k.2^n - 1 for k < 300</a>
%H A053363 <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 A053363 Sequence in context: A136143 A035791 A162136 this_sequence A027572 A050239 
               A094081
%Y A053363 Adjacent sequences: A053360 A053361 A053362 this_sequence A053364 A053365 
               A053366
%K A053363 hard,nonn
%O A053363 1,2
%A A053363 N. J. A. Sloane (njas(AT)research.att.com), Dec 29 1999