%I A032455
%S A032455 8,12,14,24,32,134,252,272,404,1460,1776,8510,14280,14396,17736,21284
%N A032455 Numbers n such that 157*2^n+1 is prime.
%H A032455 Ray Ballinger, <a href="http://www.prothsearch.net/index.html">Proth 
               Search Page</a>
%H A032455 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 A032455 Wilfrid Keller, <a href="http://www.prothsearch.net/riesel2.html">List 
               of primes k.2^n - 1 for k < 300</a>
%H A032455 <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 A032455 Sequence in context: A108979 A107071 A114414 this_sequence A050275 A033949 
               A062373
%Y A032455 Adjacent sequences: A032452 A032453 A032454 this_sequence A032456 A032457 
               A032458
%K A032455 nonn,hard
%O A032455 1,1
%A A032455 N. J. A. Sloane (njas(AT)research.att.com).