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A062618
Numbers k such that 52^k - 51^k is prime.
0
2, 29, 109, 179, 14923
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OFFSET
1,1
COMMENTS
Terms greater than 1000 are often only strong pseudoprimes.
a(6) > 10^5. -
Robert Price
, Nov 28 2012
LINKS
Table of n, a(n) for n=1..5.
PROG
(PARI) is(n)=ispseudoprime(52^n-51^n) \\
Charles R Greathouse IV
, Jun 13 2017
CROSSREFS
Cf.
A000043
,
A057468
,
A059801
,
A059802
,
A062572
-
A062666
.
Sequence in context:
A242675
A253305
A123004
*
A128842
A308899
A028883
Adjacent sequences:
A062615
A062616
A062617
*
A062619
A062620
A062621
KEYWORD
nonn
,
hard
AUTHOR
Mike Oakes
, May 18 2001, May 19 2001
EXTENSIONS
a(5) from
Robert Price
, Nov 28 2012
STATUS
approved
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Last modified May 18 15:02 EDT 2024. Contains 372641 sequences. (Running on oeis4.)