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A062615
Numbers k such that 49^k - 48^k is prime.
0
2, 3, 7, 379
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OFFSET
1,1
COMMENTS
Terms greater than 1000 are often only strong pseudoprimes.
a(5) > 10^5. -
Robert Price
, Dec 03 2012
LINKS
Table of n, a(n) for n=1..4.
PROG
(PARI) is(n)=ispseudoprime(49^n-48^n) \\
Charles R Greathouse IV
, Jun 13 2017
CROSSREFS
Cf.
A000043
,
A057468
,
A059801
,
A059802
,
A062572
-
A062666
.
Sequence in context:
A100763
A132538
A334726
*
A180162
A129907
A046284
Adjacent sequences:
A062612
A062613
A062614
*
A062616
A062617
A062618
KEYWORD
nonn
,
hard
AUTHOR
Mike Oakes
, May 18 2001, May 19 2001
STATUS
approved
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Last modified May 5 17:15 EDT 2024. Contains 372277 sequences. (Running on oeis4.)