Integers k such that 511*2^k - 1 is prime.

Terms

a(0) =1a(1) =7a(2) =9a(3) =11a(4) =15a(5) =23a(6) =31a(7) =67a(8) =103a(9) =105a(10) =113a(11) =121a(12) =127a(13) =149a(14) =231a(15) =357a(16) =471a(17) =573a(18) =627a(19) =765a(20) =1135a(21) =1595a(22) =2057a(23) =2099a(24) =3329a(25) =5557a(26) =6087a(27) =10565a(28) =13603a(29) =14287