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A070759 n for which floor((3/2)^n) is prime. 3
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; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

No more terms through 500000. [From Ryan Propper (rpropper(AT)cs.stanford.edu), Dec 28 2008]

REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, E19

LINKS

Eric Weisstein's World of Mathematics, Power Floors

MATHEMATICA

Do[ If[ PrimeQ[ Floor[(3/2)^n]], Print[n]], {n, 1, 12500}]

CROSSREFS

Cf. A043037, A070758, A067904, A070762.

Sequence in context: A200333 A024644 A010354 * A106275 A031054 A153687

Adjacent sequences:  A070756 A070757 A070758 * A070760 A070761 A070762

KEYWORD

nonn

AUTHOR

Eric Weisstein (eric(AT)weisstein.com), May 04, 2002

EXTENSIONS

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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Last modified February 15 14:52 EST 2012. Contains 205822 sequences.