Numbers n such that 117*2^n-1 is prime.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =12a(5) =16a(6) =18a(7) =20a(8) =22a(9) =24a(10) =37a(11) =40a(12) =48a(13) =49a(14) =57a(15) =62a(16) =154a(17) =172a(18) =184a(19) =236a(20) =265a(21) =374a(22) =409a(23) =445a(24) =478a(25) =664a(26) =718a(27) =928a(28) =1186a(29) =1369