Primes in A153601.

Terms

a(0) =3a(1) =5a(2) =7a(3) =11a(4) =13a(5) =17a(6) =31a(7) =43a(8) =73a(9) =127a(10) =151a(11) =241a(12) =257a(13) =331a(14) =683a(15) =2731a(16) =5419a(17) =8191a(18) =43691a(19) =61681a(20) =65537a(21) =131071a(22) =174763a(23) =262657a(24) =524287a(25) =599479a(26) =2796203a(27) =15790321a(28) =18837001a(29) =22366891