%I #27 Sep 19 2019 03:42:47
%S 1,2,5,6,10,11,22,31,33,34,41,42,53,58,65,82,126,143,162,170,186,189,
%T 206,211,270,319,369,410,433,631,894,1617,2025,4029,4082,5118,6875,
%U 8337,14723,16627,20341,24653,32054,47985,57814,62361,63558,69947
%N Numbers k such that 99*2^k+1 is prime.
%H Joerg Arndt, <a href="/A032399/b032399.txt">Table of n, a(n) for n = 1..68</a> (from http://www.prothsearch.com/riesel1.html)
%H Ray Ballinger, <a href="http://www.prothsearch.com/index.html">Proth Search Page</a>
%H Ray Ballinger and Wilfrid Keller, <a href="http://www.prothsearch.com/riesel1.html">List of primes k.2^n + 1 for k < 300</a>
%H Y. Gallot, <a href="http://www.utm.edu/research/primes/programs/gallot/index.html">Proth.exe: Windows Program for Finding Large Primes</a>
%H Wilfrid Keller, <a href="http://www.prothsearch.com/riesel2.html">List of primes k.2^n - 1 for k < 300</a>
%H <a href="/index/Pri#riesel">Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime</a>
%o (PARI) is(n)=ispseudoprime(99*2^n+1) \\ _Charles R Greathouse IV_, Jun 07 2017
%K nonn
%O 1,2
%A _James R. Buddenhagen_