%I #18 Jan 17 2019 10:08:17

%S 1,4,5,7,8,11,19,25,28,35,65,79,212,271,361,461,1237,1297,1577,1747,

%T 1901,1943,2741,3203,3425,5069,6368,8372,9761,12260,13472,24032,26227,

%U 34028,34492,54244,55660,56056,60965,67283,74576,118711,170867,175921,269809,275113,305803,358891,390373,435301,586088,1106989

%N Numbers n such that 99*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(99*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