Numbers n such that 259*2^n-1 is prime.

Terms

a(0) =5a(1) =7a(2) =9a(3) =27a(4) =33a(5) =37a(6) =59a(7) =179a(8) =289a(9) =389a(10) =917a(11) =1885a(12) =2987a(13) =3683a(14) =4807a(15) =8709a(16) =10153a(17) =11067a(18) =11665a(19) =18909a(20) =22085a(21) =32489a(22) =36233a(23) =143133a(24) =202609a(25) =278567a(26) =316403a(27) =347159a(28) =423467a(29) =425257