%I A077498
%S A077498 2,3,5,17,29,113,197,257,449,1373,3137,50177,65537,114689,268913,470597,
%T A077498 614657,1075649,3294173,7340033,9834497,210827009,275365889,359661569,
%U A077498 469762049,1129900997,1438646273,1927561217,7909306973,52613349377
%N A077498 Primes of the form 2^r*7^s + 1.
%e A077498 197 = 2^2*7^2 + 1 is a member.
%Y A077498 Sequence in context: A057468 A127062 A029972 this_sequence A118958 A163588 
               A053182
%Y A077498 Adjacent sequences: A077495 A077496 A077497 this_sequence A077499 A077500 
               A077501
%K A077498 nonn
%O A077498 1,1
%A A077498 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 07 2002
%E A077498 Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), 
               Aug 02 2003