A015929 Positive integers n such that 2^n == 2^8 (mod n).

1, 2, 4, 6, 8, 12, 14, 16, 20, 24, 32, 40, 48, 56, 60, 64, 80, 88, 96, 104, 120, 127, 128, 136, 140, 152, 160, 184, 192, 224, 232, 240, 248, 256, 260, 272, 296, 308, 320, 328, 344, 376, 384, 408, 416, 424, 472, 480, 488, 528, 536, 544, 560, 568, 584, 632, 640, 664, 680, 712, 728, 768, 776, 808, 816, 824, 856, 872, 896, 904, 960, 1016, 1040, 1048, 1088, 1096, 1112, 1148, 1178, 1192