Primes p such that p1=Floor[p/2]+p is prime and p2=Ceiling[p1/2]+p1 is prime.

Terms

a(0) =2a(1) =5a(2) =13a(3) =101a(4) =293a(5) =421a(6) =541a(7) =661a(8) =821a(9) =1021a(10) =1301a(11) =1493a(12) =2621a(13) =3221a(14) =3373a(15) =3853a(16) =5693a(17) =5981a(18) =6133a(19) =6421a(20) =6733a(21) =7853a(22) =8861a(23) =8941a(24) =9173a(25) =9221a(26) =9341a(27) =9901a(28) =10061a(29) =10093