Primes in A103375.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =17a(5) =31a(6) =71a(7) =127a(8) =157a(9) =227a(10) =257a(11) =293a(12) =349a(13) =419a(14) =503a(15) =1993a(16) =7907a(17) =26293a(18) =29311a(19) =34603a(20) =67477a(21) =3147311a(22) =9159547a(23) =973669469a(24) =6797534657a(25) =9627183689a(26) =297222052181