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Search: id:A115976
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| A115976 |
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Numbers n such that n divides 2^(n-2)+1. |
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1
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| 1, 3, 49737, 717027, 9723611, 21335267, 32390921, 38999627, 43091897, 86071337, 101848553, 102361457, 228911411, 302948067, 370219467, 393664027, 455781089, 483464027, 1040406177, 1272206987, 2371678553, 2571052241, 2648052857
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OFFSET
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1,2
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MATHEMATICA
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lst = {}; Do[ If[ PowerMod[2, 2n - 3, 2n - 1] == 2n - 2, AppendTo[lst, 2n - 1]], {n, 10^9}]; lst - Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 04 2006
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CROSSREFS
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Cf. A006521.
Cf. A006521, A006517, A069927, A067945, A067946, A067947, A068382, A068383, A014945, A014946, A014949, A092028.
Sequence in context: A135760 A003541 A086829 this_sequence A119119 A086785 A116536
Adjacent sequences: A115973 A115974 A115975 this_sequence A115977 A115978 A115979
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KEYWORD
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nonn
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AUTHOR
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Max Alekseyev (maxal(AT)cs.ucsd.edu), Mar 15 2006
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 04 2006
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