Numbers k such that 285*2^k-1 is prime.

Terms

a(0) =1a(1) =7a(2) =8a(3) =12a(4) =19a(5) =23a(6) =41a(7) =44a(8) =47a(9) =62a(10) =63a(11) =79a(12) =197a(13) =293a(14) =472a(15) =788a(16) =956a(17) =1083a(18) =1232a(19) =1533a(20) =1539a(21) =1673a(22) =2399a(23) =2827a(24) =2993a(25) =3327a(26) =3816a(27) =4072a(28) =4152a(29) =4156