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Search: id:A014224
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| A014224 |
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Numbers n such that 3^n - 2 is prime. |
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+0
24
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| 2, 4, 5, 6, 9, 22, 37, 41, 90, 102, 105, 317, 520, 541, 561, 648, 780, 786, 957, 1353, 2224, 2521, 6184, 7989, 8890, 19217, 20746, 31722, 37056
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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Daniel Minoli, W. Nakamine, Mersenne Numbers Rooted On 3 For Number Theoretic Transforms, 1980 IEEE International Conf. on Acoust., Speech and Signal Processing. [From Daniel Minoli (daniel.minoli(AT)ses.com), Aug 26 2009]
Daniel Minoli, Voice over MPLS, McGraw-Hill, New York, NY, 2002, ISBN 0-07-140615-8 (p.114-134) [From Daniel Minoli (daniel.minoli(AT)ses.com), Aug 26 2009]
Daniel Minoli, Sufficient Forms For Generalized Perfect Numbers, Ann. Fac. Sciences, Univ. Nation. Zaire, Section Mathem; Vol. 4, No. 2, Dec 1978, pp. 277-302. [From Daniel Minoli (daniel.minoli(AT)ses.com), Aug 26 2009]
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MATHEMATICA
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lst={}; Do[If[PrimeQ[3^n-2], Print[n]; AppendTo[lst, n]], {n, 10^5}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 21 2008]
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CROSSREFS
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3^n - 2 = A058481(n).
Sequence in context: A003306 A136585 A122721 this_sequence A077312 A140779 A117890
Adjacent sequences: A014221 A014222 A014223 this_sequence A014225 A014226 A014227
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KEYWORD
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nonn
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AUTHOR
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Jud McCranie (j.mccranie(AT)comcast.net)
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EXTENSIONS
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Corrected by Andrey Kulsha (Andrey_601(AT)tut.by), Feb 04 2001.
More terms from Ryan Propper (rpropper(AT)stanford.edu), May 11 2007
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