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Search: id:A130441
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| A130441 |
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Even pseudoprimes to base 37. |
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+0
13
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| 4, 6, 12, 18, 28, 36, 66, 246, 268, 396, 1476, 1876, 2044, 2556, 2706, 3556, 5986, 9514, 11034, 16236, 17466, 25626, 31956, 34716, 120786, 149076, 153756, 246484, 259588, 281886, 283276, 483636, 552926, 559966, 623566, 670186, 721846, 846076, 1050666
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Robert G. Wilson v, Table of n, a(n) for n = 1..243.
Eric Weisstein's World of Mathematics, Fermat Pseudoprime.
Index entries for sequences related to pseudoprimes
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MATHEMATICA
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Do[ f=PowerMod[ 37, 2n-1, 2n ]; If[ f==1, Print[ 2n ] ], {n, 2, 500000} ]
lst = {}; Do[ If[ PowerMod[37, 2n - 1, 2n] == 1, AppendTo[lst, 2n]], {n, 2, 2^31}]; lst - from Robert G. Wilson v (rgwv(at)rgwv.com), Jun 01 2007
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CROSSREFS
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Cf. A020165, A006935, A130433, A090082, A090083, A090084, A090085, A130434, A130435, A130436, A130437, A130438, A130439, A130440, A130442, A130443.
Sequence in context: A072568 A154965 A109290 this_sequence A068570 A074998 A061715
Adjacent sequences: A130438 A130439 A130440 this_sequence A130442 A130443 A130444
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KEYWORD
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nonn
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AUTHOR
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Alexander Adamchuk (alex(AT)kolmogorov.com), May 26 2007
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