Numbers k such that 297*2^k-1 is prime.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =9a(5) =10a(6) =14a(7) =18a(8) =24a(9) =25a(10) =30a(11) =42a(12) =48a(13) =49a(14) =56a(15) =90a(16) =97a(17) =182a(18) =336a(19) =348a(20) =434a(21) =546a(22) =769a(23) =1148a(24) =1294a(25) =1394a(26) =1654a(27) =2265a(28) =2966a(29) =3608