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A267375
Numbers n such that (47^n - 1)/46 is prime.
1
127, 18013, 39623
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..3.
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
Adjacent sequences:
A267372
A267373
A267374
*
A267376
A267377
A267378
KEYWORD
nonn
,
more
,
hard
AUTHOR
Tim Johannes Ohrtmann
, Feb 22 2016
STATUS
approved
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Last modified June 30 00:34 EDT 2024. Contains 373859 sequences. (Running on oeis4.)