%I A032493
%S A032493 1,5,9,13,17,25,33,53,57,77,521,593,609,845,917,985,1321,1801,3565,
%T A032493 4953,5137,13193,14173,15517,15629,21853,22009,24625,40041,47797,50257,
%U A032493 52433,114881
%N A032493 Numbers n such that 233*2^n+1 is prime.
%H A032493 Ray Ballinger, <a href="http://www.prothsearch.net/index.html">Proth 
               Search Page</a>
%H A032493 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 A032493 Wilfrid Keller, <a href="http://www.prothsearch.net/riesel2.html">List 
               of primes k.2^n - 1 for k < 300</a>
%H A032493 <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 A032493 Sequence in context: A098109 A057653 A085759 this_sequence A125018 A074787 
               A079497
%Y A032493 Adjacent sequences: A032490 A032491 A032492 this_sequence A032494 A032495 
               A032496
%K A032493 nonn,hard
%O A032493 1,2
%A A032493 N. J. A. Sloane (njas(AT)research.att.com).