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Search: id:A070759
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| A070759 |
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n for which floor((3/2)^n) is prime. |
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+0
4
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| 2, 3, 4, 5, 6, 7, 21, 22, 98, 106, 164, 189, 219, 364, 443, 670, 775, 1919, 2204, 2715, 3692, 4228, 4912, 10466, 12300, 14087, 21659, 28170, 55832, 66577, 87309, 87505, 98144, 167512, 259517
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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No more terms through 500000. [From Ryan Propper (rpropper(AT)cs.stanford.edu), Dec 28 2008]
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REFERENCES
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R. K. Guy, Unsolved Problems in Number Theory, E19
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LINKS
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Eric Weisstein's World of Mathematics, Power Floors
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MATHEMATICA
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Do[ If[ PrimeQ[ Floor[(3/2)^n]], Print[n]], {n, 1, 12500}]
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CROSSREFS
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Cf. A043037, A070758, A067904, A070762.
Adjacent sequences: A070756 A070757 A070758 this_sequence A070760 A070761 A070762
Sequence in context: A037342 A024644 A010354 this_sequence A106275 A031054 A153687
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KEYWORD
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nonn
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AUTHOR
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Eric Weisstein (eric(AT)weisstein.com), May 04, 2002
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EXTENSIONS
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One more term from Ralf Stephan (ralf(AT)ark.in-berlin.de), Oct 13 2002
Corrected and extended by G. Wilson v (rgwv(AT)rgwv.com), Jan 15 2003
More terms from Ryan Propper (rpropper(AT)cs.stanford.edu), Jan 25 2008
6 more terms. Ryan Propper (rpropper(AT)cs.stanford.edu), Dec 28 2008
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