A038160 Intersection of A003136 and A038590.
1, 7, 13, 19, 31, 37, 43, 61, 73, 91, 97, 109, 121, 127, 139, 151, 163, 169, 199, 211, 223, 241, 271, 283, 301, 313, 337, 349, 361, 367, 379, 397, 409, 421, 433, 439, 463, 475, 499, 511, 547, 559, 571, 613, 625, 637, 661, 673, 691, 703, 721
Offset: 1