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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A020279 Strong pseudoprimes to base 53. 1 9, 27, 91, 1405, 1441, 1541, 2209, 2863, 3367, 3481, 5317, 6031, 9409, 11359, 14833, 17141, 17461, 27937, 31753, 37219, 50041, 61391, 62341, 68251, 80041, 94657, 96049, 105931, 123391, 131131, 146611, 153145, 161701, 162401, 171613, 176689, 179521 (list; graph; refs; listen; history; text; internal format) OFFSET 1,1 LINKS R. J. Mathar, Table of n, a(n) for n = 1..203 Index entries for sequences related to pseudoprimes CROSSREFS Sequence in context: A036317 A053762 A126322 * A339725 A328604 A357667 Adjacent sequences: A020276 A020277 A020278 * A020280 A020281 A020282 KEYWORD nonn AUTHOR David W. Wilson STATUS approved

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Last modified July 18 17:25 EDT 2024. Contains 374388 sequences. (Running on oeis4.)