Smallest prime p such that p# + Mersenne-prime(n) is prime.

Terms

a(0) =2a(1) =3a(2) =3a(3) =5a(4) =5a(5) =5a(6) =7a(7) =7a(8) =31a(9) =5a(10) =59a(11) =5a(12) =11a(13) =137a(14) =397a(15) =211a(16) =2851a(17) =601a(18) =373a(19) =271a(20) =17467a(21) =127a(22) =1657a(23) =52951a(24) =6547a(25) =11971a(26) =37489