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A254519
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Largest n-digit pseudoprime to base 3.
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0
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91, 949, 8911, 97567, 997633, 9959413, 99971821, 999271891, 9999326731, 99997244929, 999989423051, 9999899578441, 99999695823301, 999999050050321, 9999997295187859, 99999997019370001
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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2,1
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LINKS
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Table of n, a(n) for n=2..17.
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PROG
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(PARI) for(n=2, 20, k=10^n; while(ispseudoprime(k) || Mod(3, k)^(k-1)!=1, k--); print1(k, ", "))
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CROSSREFS
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Cf. A005935, A067845.
Sequence in context: A085952 A129255 A093291 * A185375 A036526 A170955
Adjacent sequences: A254516 A254517 A254518 * A254520 A254521 A254522
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KEYWORD
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nonn,hard,base,more
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AUTHOR
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Felix Fröhlich, Jan 31 2015
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STATUS
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approved
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