%I #18 Jan 17 2019 10:08:17
%S 2,4,14,26,58,60,64,100,122,212,566,638,1214,2080,4852,5356,5720,7044,
%T 8320,8556,10684,14584,39016,47972,72008,217956,223512,387680,441528,
%U 607920,855770
%N Numbers n such that 77*2^n-1 is prime.
%C 1467554 is also a member. - Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008
%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(77*2^n-1) \\ _Charles R Greathouse IV_, Jun 13 2017
%K hard,nonn
%O 1,1
%A _N. J. A. Sloane_, Dec 29 1999
%E More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008