A082468 a(n) is the smallest positive integer such that k=n where k is the least positive integer such that n-k and n+k are both primes.

4, 5, 8, 1, 2, 11, 54, 3, 22, 117, 222, 19, 114, 87, 46, 207, 216, 61, 258, 291, 128, 591, 336, 43, 306, 423, 136, 519, 492, 97, 888, 951, 146, 537, 318, 163, 1656, 561, 238, 699, 732, 191, 864, 1365, 286, 1353, 1674, 229, 1422, 1671, 802, 2451, 876, 283, 576, 2577