%I #19 Jan 17 2019 10:08:17
%S 1,2,8,9,10,12,22,29,32,50,57,69,81,122,138,200,296,514,656,682,778,
%T 881,1422,1494,1857,3060,3489,4106,5129,5378,8096,8546,10138,10941,
%U 13749,21758,23554,24582,27526,28581,29306,29588,36101,36681,41378,45689,55769,56049,65676,77361,96426,110189,128630,142738,154352,155794,188689,353734,360829,382268,796341,942790
%N Numbers n such that 87*2^n-1 is prime.
%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 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>
%H Kosmaj, <a href="http://www.15k.org/riesellist.html">Riesel list k<300</a>.
%o (PARI) is(n)=ispseudoprime(87*2^n-1) \\ _Charles R Greathouse IV_, Jun 13 2017
%K hard,nonn
%O 1,2
%A _N. J. A. Sloane_, Dec 29 1999
%E More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008