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A173975 Numbers k such that k^k + 115 is prime. 0
6, 8, 18, 36, 38, 176 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(7) > 3000. - Daniel Starodubtsev, Aug 05 2019

LINKS

Table of n, a(n) for n=1..6.

MATHEMATICA

f[n_]:=PrimeQ[n^n+115]; lst={}; Do[If[f[n], AppendTo[lst, n]], {n, 6!}]; lst

PROG

(PARI) is(n)=ispseudoprime(n^n+115) \\ Charles R Greathouse IV, Jun 13 2017

CROSSREFS

Cf. A100837, A100838, A100839, A173974.

Sequence in context: A315945 A086913 A108341 * A199884 A028331 A279729

Adjacent sequences:  A173972 A173973 A173974 * A173976 A173977 A173978

KEYWORD

nonn,hard,more

AUTHOR

Vladimir Joseph Stephan Orlovsky, Mar 03 2010

STATUS

approved

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Last modified August 21 23:01 EDT 2019. Contains 326169 sequences. (Running on oeis4.)