A020249 Strong pseudoprimes to base 23.
169, 265, 553, 1271, 2701, 4033, 4371, 4681, 6533, 6541, 7957, 8321, 8651, 8911, 9805, 14981, 18721, 25201, 31861, 34133, 44173, 47611, 47783, 50737, 57401, 62849, 82513, 96049, 109061, 113737, 140807, 153181, 163933, 177193, 182071, 210493, 210799
Offset: 1