A020240 Strong pseudoprimes to base 14.
15, 841, 2743, 3277, 5713, 6541, 7171, 9073, 18721, 21667, 22261, 23521, 38221, 38417, 40501, 41371, 49471, 58255, 68401, 71969, 79003, 88381, 91681, 95033, 96049, 97469, 110309, 115417, 119341, 124609, 134413, 141373, 165677, 211951, 226801
Offset: 1