Primes in A128490.

Terms

a(0) =5a(1) =7a(2) =17a(3) =19a(4) =71a(5) =109a(6) =191a(7) =379a(8) =449a(9) =521a(10) =881a(11) =1231a(12) =2591a(13) =3079a(14) =3457a(15) =3499a(16) =4159a(17) =9281a(18) =9521a(19) =12511a(20) =13339a(21) =17137a(22) =21121a(23) =23561a(24) =23869a(25) =33151a(26) =39761a(27) =39799a(28) =48619a(29) =53731