Primes p such that primorial(p)/2 - 2 is prime.

Terms

a(0) =5a(1) =7a(2) =11a(3) =13a(4) =17a(5) =19a(6) =23a(7) =31a(8) =41a(9) =53a(10) =71a(11) =103a(12) =167a(13) =431a(14) =563a(15) =673a(16) =727a(17) =829a(18) =1801a(19) =2699a(20) =4481a(21) =6121a(22) =7283a(23) =9413a(24) =10321a(25) =12491a(26) =17807a(27) =30307a(28) =31891a(29) =71917