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A062620
Numbers k such that 54^k - 53^k is prime.
0
2, 479, 1129, 2549, 11003
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OFFSET
1,1
COMMENTS
Terms greater than 1000 often correspond only to strong probable primes.
a(6) > 10^5. -
Robert Price
, Feb 18 2013
LINKS
Table of n, a(n) for n=1..5.
PROG
(PARI) is(n)=ispseudoprime(54^n-53^n) \\
Charles R Greathouse IV
, Jun 13 2017
CROSSREFS
Cf.
A000043
,
A057468
,
A059801
,
A059802
,
A062572
-
A062666
.
Sequence in context:
A066152
A112862
A094484
*
A108973
A087615
A027655
Adjacent sequences:
A062617
A062618
A062619
*
A062621
A062622
A062623
KEYWORD
nonn
,
hard
AUTHOR
Mike Oakes
, May 18 2001, May 19 2001
EXTENSIONS
a(5) = 11003 found by
Mike Oakes
in Aug 2003. -
Jean-Louis Charton
, Aug 15 2012
STATUS
approved
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Last modified June 5 01:34 EDT 2024. Contains 373102 sequences. (Running on oeis4.)