|
Search: id:A006033
|
|
|
| A006033 |
|
Numbers n such that (15^n - 1)/14 is prime.
(Formerly M3150)
|
|
+0
16
|
| |
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
8741 and 37441 are only probable primes. - Julien Peter Benney (jpbenney(AT)ftml.net), Apr 27 2007
|
|
REFERENCES
|
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
H. Dubner, Generalized repunit primes, Math. Comp., 61 (1993), 927-930.
Ribenboim, Paulo; "The Book Of Prime Number Records"; published 1989 by Springer-Verlag; pages 350-354.
|
|
LINKS
|
H. Lifchitz, Mersenne and Fermat primes field
|
|
EXAMPLE
|
(15^3-1)/14 = 241, which is prime.
|
|
MATHEMATICA
|
lst={}; Do[If[PrimeQ[(15^n-1)/14], Print[n]; AppendTo[lst, n]], {n, 10^5}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 21 2008]
|
|
CROSSREFS
|
Cf. A083402, A058808, A059802, A002551, A062647, A003525.
Sequence in context: A137192 A059802 A139854 this_sequence A142184 A002551 A127930
Adjacent sequences: A006030 A006031 A006032 this_sequence A006034 A006035 A006036
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com).
|
|
EXTENSIONS
|
One more term from Julien Peter Benney (jpbenney(AT)ftml.net), Apr 27 2007
|
|
|
Search completed in 0.002 seconds
|
