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A216375 Numbers k such that 11^k + k^11 + 1 is prime. 11
0, 1, 5, 941, 23071 (list; graph; refs; listen; history; text; internal format)
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 12 17:17 EDT 2020. Contains 336439 sequences. (Running on oeis4.)