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A020235 Strong pseudoprimes to base 9. 1
91, 121, 671, 703, 1541, 1729, 1891, 2821, 3281, 3367, 3751, 5551, 7381, 8401, 8911, 10585, 11011, 12403, 14383, 15203, 16471, 16531, 18721, 19345, 23521, 24661, 24727, 28009, 29341, 30857, 31621, 32791, 38503, 44287, 46999, 47197, 49051, 49141, 53131 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. J. Mathar, Table of n, a(n) for n = 1..369

Eric Weisstein's World of Mathematics, Strong Pseudoprime

Index entries for sequences related to pseudoprimes

CROSSREFS

Cf. A020229 (base 3), A020307 (base 81).

Sequence in context: A092125 A005935 A020307 * A046427 A179338 A020238

Adjacent sequences:  A020232 A020233 A020234 * A020236 A020237 A020238

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified August 27 21:58 EDT 2015. Contains 261098 sequences.