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A016054 Numbers n such that (13^n - 1)/12 is prime.
(Formerly M2708)
+0
16
5, 7, 137, 283, 883, 991, 1021, 1193, 3671, 18743, 31751 (list; graph; listen)
OFFSET

1,1

REFERENCES

H. Dubner, Generalized repunit primes, Math. Comp., 61 (1993), 927-930.

LINKS

H. Lifchitz, Mersenne and Fermat primes field

CROSSREFS

Sequence in context: A062583 A088270 A065927 this_sequence A083842 A123536 A057177

Adjacent sequences: A016051 A016052 A016053 this_sequence A016055 A016056 A016057

KEYWORD

nonn

AUTHOR

njas

EXTENSIONS

Error in first term corrected Aug 15 1997 by Robert G. Wilson v (rgwv(AT)rgwv.com).

18743 (probable prime) from David Radcliffe (radcl008(AT)umn.edu), Jul 04 2004

One more term from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 05 2008

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


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