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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A020282 Strong pseudoprimes to base 56. 1 55, 57, 247, 1027, 1501, 1705, 1891, 3193, 3277, 5665, 12403, 18721, 19513, 19517, 20329, 38963, 46717, 76049, 79213, 90973, 118301, 128627, 135097, 137299, 144523, 163073, 175615, 188501, 196981, 197633, 211411, 218791, 226651, 235183, 250849 (list; graph; refs; listen; history; text; internal format) OFFSET 1,1 LINKS R. J. Mathar, Table of n, a(n) for n = 1..300 Index entries for sequences related to pseudoprimes CROSSREFS Sequence in context: A232653 A291502 A042511 * A345483 A345484 A101286 Adjacent sequences: A020279 A020280 A020281 * A020283 A020284 A020285 KEYWORD nonn AUTHOR David W. Wilson STATUS approved

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Last modified August 18 12:13 EDT 2024. Contains 375269 sequences. (Running on oeis4.)