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A059609 Numbers n such that 2^n-7 is prime. +0
6
39, 715, 1983, 2319, 2499, 3775, 12819 (list; graph; listen)
OFFSET

1,1

REFERENCES

J.-M. De Koninck and A. Mercier, 1001 Problemes en Theorie Classique Des Nombres, Problem 395 pp. 55; 218, Ellipses Paris 2004.

CROSSREFS

Sequence in context: A061169 A077454 A034187 this_sequence A010955 A126927 A010991

Adjacent sequences: A059606 A059607 A059608 this_sequence A059610 A059611 A059612

KEYWORD

nonn

AUTHOR

Andrey Kulsha (Andrey_601(AT)tut.by), Feb 02 2001

EXTENSIONS

No other terms below 20000.

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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