Numbers k such that 347*2^k+1 is prime.

Terms

a(0) =3a(1) =7a(2) =15a(3) =23a(4) =27a(5) =175a(6) =259a(7) =391a(8) =607a(9) =679a(10) =863a(11) =927a(12) =999a(13) =1339a(14) =1371a(15) =1555a(16) =2103a(17) =2151a(18) =2715a(19) =5619a(20) =6411a(21) =7055a(22) =12927a(23) =19015a(24) =26095a(25) =42523a(26) =45719a(27) =55519a(28) =70971a(29) =87663