Numbers n such that 291*2^n-1 is prime.

Terms

a(0) =2a(1) =5a(2) =9a(3) =11a(4) =17a(5) =21a(6) =29a(7) =30a(8) =33a(9) =50a(10) =59a(11) =62a(12) =137a(13) =161a(14) =281a(15) =290a(16) =533a(17) =842a(18) =1410a(19) =1553a(20) =4794a(21) =5529a(22) =5661a(23) =7013a(24) =7470a(25) =19605a(26) =63477a(27) =72513a(28) =152942a(29) =201494