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A020233 Strong pseudoprimes to base 7. 9
25, 325, 703, 2101, 2353, 4525, 11041, 14089, 20197, 29857, 29891, 39331, 49241, 58825, 64681, 76627, 78937, 79381, 87673, 88399, 88831, 102943, 109061, 137257, 144901, 149171, 173951, 178709, 188191, 197633, 219781, 227767, 231793, 245281 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. J. Mathar, Table of n, a(n) for n = 1..200

Eric Weisstein's World of Mathematics, Strong Pseudoprime

Index entries for sequences related to pseudoprimes

CROSSREFS

Cf. A020232 (base 6).

Sequence in context: A077503 A262054 A020275 * A020319 A000448 A000446

Adjacent sequences:  A020230 A020231 A020232 * A020234 A020235 A020236

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified October 18 07:16 EDT 2019. Contains 328146 sequences. (Running on oeis4.)