A073704 Smallest prime p such that also p-prime(n)*2 is a prime.

7, 11, 13, 17, 29, 29, 37, 41, 53, 61, 67, 79, 89, 89, 97, 109, 131, 127, 137, 149, 149, 163, 173, 181, 197, 233, 211, 227, 223, 229, 257, 269, 277, 281, 311, 307, 317, 331, 337, 349, 389, 367, 389, 389, 397, 401, 433, 449, 457, 461, 479, 491, 487, 509, 521