%I A032356
%S A032356 2,8,10,20,28,82,188,308,316,1000,28280,38008,43856,88018,109258,
%T A032356 114296
%N A032356 Numbers n such that 13*2^n+1 is prime.
%H A032356 Ray Ballinger, <a href="http://www.prothsearch.net/index.html">Proth 
               Search Page</a>
%H A032356 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 A032356 Y. Gallot, <a href="http://www.utm.edu/research/primes/programs/gallot/
               index.html">Proth.exe: Windows Program for Finding Large Primes</
               a>
%H A032356 Wilfrid Keller, <a href="http://www.prothsearch.net/riesel2.html">List 
               of primes k.2^n - 1 for k < 300</a>
%H A032356 <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 A032356 Cf. A002257.
%Y A032356 Sequence in context: A038638 A082396 A071388 this_sequence A114272 A108468 
               A165593
%Y A032356 Adjacent sequences: A032353 A032354 A032355 this_sequence A032357 A032358 
               A032359
%K A032356 nonn,hard
%O A032356 1,1
%A A032356 Jim Buddenhagen (jbuddenh(AT)gmail.com)