A086110 p=prime is substring of 2^p-1.

7, 37, 67, 73, 89, 179, 191, 373, 479, 521, 601, 613, 619, 653, 661, 673, 701, 719, 727, 769, 773, 853, 881, 907, 919, 1553, 1571, 1693, 1709, 1747, 1831, 2003, 2111, 2137, 2309, 2347, 2351, 2543, 2593, 2707, 2719, 2837, 3023, 3361, 3583, 3613, 3673, 3727