%I A098863
%S A098863 1,2,3,7,8,152,206,686,1194,1610
%N A098863 Numbers n such that (6^n)*(2^n - 1) - 1 is prime.
%C A098863 Next term is > 5000.
%C A098863 All terms under 5000 correspond to certified primes. (Primo 2.2.0 beta). 
               - Ryan Propper (rpropper(AT)stanford.edu), Apr 03 2006
%Y A098863 Sequence in context: A068342 A038034 A103173 this_sequence A053960 A114056 
               A140221
%Y A098863 Adjacent sequences: A098860 A098861 A098862 this_sequence A098864 A098865 
               A098866
%K A098863 more,nonn
%O A098863 1,2
%A A098863 Pierre CAMI (pierrecami(AT)tele2.fr), Oct 12 2004