Numbers n such that 235*2^n-1 is prime.

Terms

a(0) =3a(1) =9a(2) =15a(3) =75a(4) =143a(5) =425a(6) =693a(7) =803a(8) =903a(9) =953a(10) =1079a(11) =1613a(12) =1667a(13) =2937a(14) =7157a(15) =7899a(16) =136767a(17) =178739a(18) =191973a(19) =231927a(20) =312345a(21) =315773a(22) =556077