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A267375 Numbers n such that (47^n - 1)/46 is prime. 1
127, 18013, 39623 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
PROG
(PARI) is(n)=ispseudoprime((47^n-1)/46) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
Sequence in context: A058322 A252483 A138128 * A238995 A069408 A289474
KEYWORD
nonn,more,hard
AUTHOR
STATUS
approved

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Last modified July 14 20:49 EDT 2024. Contains 374323 sequences. (Running on oeis4.)