Numbers n such that 175*2^n-1 is prime.

Terms

a(0) =1a(1) =3a(2) =9a(3) =21a(4) =23a(5) =41a(6) =47a(7) =57a(8) =69a(9) =83a(10) =193a(11) =249a(12) =291a(13) =421a(14) =433a(15) =997a(16) =1269a(17) =1619a(18) =1893a(19) =2457a(20) =3527a(21) =9579a(22) =14699a(23) =15677a(24) =16479a(25) =21293a(26) =30729a(27) =33609a(28) =47437a(29) =143691