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Search: id:A123061
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| A123061 |
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Numbers n such that n divides 5^n - 3. |
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+0
3
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| 1, 2, 22, 77, 242, 371, 16102, 45727, 73447, 81286, 112277, 368237, 10191797, 13563742, 30958697, 389974222, 6171655457
(list; graph; listen)
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OFFSET
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1,2
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MATHEMATICA
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Select[Range[1000000], IntegerQ[(PowerMod[5, #, # ]-3)/# ]&]
Do[If[IntegerQ[(PowerMod[5, n, n ]-3)/n], Print[n]], {n, 10^9}] - Ryan Propper (rpropper(AT)stanford.edu), Dec 30 2006
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CROSSREFS
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Cf. A067946 = numbers n such that n divides 5^n-1, A015951 = numbers n such that n | 5^n + 1.
Numbers n such that n divides 5^n + 3 are in A123052.
Sequence in context: A060108 A080142 A053940 this_sequence A050853 A105237 A083833
Adjacent sequences: A123058 A123059 A123060 this_sequence A123062 A123063 A123064
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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), Nov 04 2006
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EXTENSIONS
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More terms from Farideh Firoozbakht (mymontain(AT)yahoo.com), Nov 18 2006
Corrected and extended by Ryan Propper (rpropper(AT)stanford.edu), Jan 01 2007
Entry revised by njas, Jan 24 2007
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