Primes of the form 33*2^n + 7.

Terms

a(0) =73a(1) =139a(2) =271a(3) =1063a(4) =4231a(5) =16903a(6) =270343a(7) =540679a(8) =1081351a(9) =69206023a(10) =276824071a(11) =1107296263