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A020281
Strong pseudoprimes to base 55.
1
9, 27, 1027, 1387, 1513, 4033, 6533, 9773, 10649, 19513, 20491, 20797, 27613, 28009, 28939, 29891, 31021, 38503, 43877, 55981, 56033, 74971, 80137, 82513, 83333, 91001, 92101, 112471, 113491, 117569, 128627, 130759, 147109, 158701, 164609, 164917
OFFSET
1,1
CROSSREFS
Sequence in context: A317027 A020254 A124396 * A075539 A225300 A053825
KEYWORD
nonn
STATUS
approved