%I
%S 2,4,5,6,9,21,41,52,58,118,130,585,614,744,881,941,966,1280,1658,4985
%N Numbers n such that abs(7^n  2^11) is prime.
%H C. Pomerance, <a href="http://www.sciencenews.org/pages/sn_arc98/7_4_98/mathland.htm">Science News reference</a>.
%e For x = 2 abs(7^22^11) = 1999 which is prime. So 2 is the first entry.
%o (PARI) g(n) = for(x=1,n,y=abs(7^x2^11);if(ispseudoprime(y),print1(x",")))
%K easy,nonn
%O 1,1
%A _Cino Hilliard_, Sep 23 2006
