Numbers n such that 85*2^n-1 is prime.

Terms

a(0) =5a(1) =11a(2) =71a(3) =113a(4) =115a(5) =355a(6) =473a(7) =563a(8) =883a(9) =1235a(10) =5735a(11) =9809a(12) =11311a(13) =14491a(14) =25495a(15) =125675a(16) =128459a(17) =147115a(18) =656039a(19) =683573a(20) =1034069