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A090084
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Even pseudoprimes to base 11.
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13
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10, 70, 190, 1330, 8170, 9730, 24130, 28462, 58030, 98458, 143830, 144886, 327370, 856786, 1580230, 1620130, 3536470, 5274970, 6082490, 6376126, 6792710, 8066170, 8610610, 14076910, 17728930, 27275158, 42447406, 52970386, 53497978, 68925130
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Robert G. Wilson v, Table of n, a(n) for n = 0..84.
Eric Weisstein's World of Mathematics, Fermat Pseudoprime.
Index entries for sequences related to pseudoprimes
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MATHEMATICA
| Do[ f=PowerMod[ 11, 2n-1, 2n ]; If[ f==1, Print[ 2n ] ], {n, 2, 800000} ] - Alexander Adamchuk (alex(AT)kolmogorov.com), May 26 2007
lst = {}; Do[ If[ PowerMod[17, 2n - 1, 2n] == 1, AppendTo[lst, 2n]], {n, 2, 2*10^9}]; lst - Robert G. Wilson v (rgwv(at)rgwv.com), Jun 01 2007
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CROSSREFS
| Cf. A020139.
Cf. A020139, A006935, A130433, A090082, A090083, A090084, A090085, A130434, A130435, A130436, A130438, A130439, A130440, A130441, A130442, A130443.
Sequence in context: A128737 A130548 A160662 * A025221 A005567 A174434
Adjacent sequences: A090081 A090082 A090083 * A090085 A090086 A090087
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KEYWORD
| nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), Nov 25 2003
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EXTENSIONS
| More terms from Alexander Adamchuk (alex(AT)kolmogorov.com), May 26 2007
Further terms from Robert G. Wilson v (rgwv(at)rgwv.com), Jun 01 2007
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