Numbers n such that primorial(n)/2 + 4 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =7a(5) =18a(6) =21a(7) =70a(8) =76a(9) =323a(10) =340a(11) =556a(12) =572a(13) =3433a(14) =5457a(15) =5897a(16) =10820