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A216375
Numbers k such that 11^k + k^11 + 1 is prime.
11
0, 1, 5, 941, 23071
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OFFSET
1,3
COMMENTS
a(6) > 10^5. -
Robert Price
, Jan 16 2013
LINKS
Table of n, a(n) for n=1..5.
MATHEMATICA
Select[Range[0, 5000], PrimeQ[11^# + #^11 + 1] &]
PROG
(PARI) is(n)=isprime(11^n+n^11+1) \\
Charles R Greathouse IV
, Feb 17 2017
CROSSREFS
Cf.
A100357
,
A215434
-
A215445
.
Sequence in context:
A093853
A195627
A318066
*
A157332
A332195
A229203
Adjacent sequences:
A216372
A216373
A216374
*
A216376
A216377
A216378
KEYWORD
nonn
,
hard
,
more
AUTHOR
Vincenzo Librandi
, Sep 06 2012
EXTENSIONS
a(5) from
Robert Price
, Jan 16 2014
STATUS
approved
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Last modified August 29 23:34 EDT 2024. Contains 375520 sequences. (Running on oeis4.)