A102458 Numbers n with A102457(n) != lpf(n-1) (lpf = least prime factor).

2, 152, 158, 338, 368, 380, 524, 542, 548, 608, 614, 662, 674, 692, 998, 1052, 1094, 1110, 1154, 1182, 1202, 1238, 1292, 1322, 1328, 1472, 1532, 1544, 1598, 1622, 1628, 1664, 1862, 1934, 1952, 2018, 2030, 2084, 2132, 2240, 2340, 2342, 2352, 2468, 2474