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A125967 Numbers n for which n^9+n^8-1 is prime. 0
14, 21, 27, 42, 51, 53, 69, 78, 90, 104, 111, 128, 137, 149, 156, 159, 190, 219, 231, 247, 254, 289, 315, 322, 330, 331, 336, 344, 354, 397 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..30.

MATHEMATICA

Do[If[PrimeQ[x^9 + x^8 - 1], Print[x]], {x, 1, 400}]

PROG

(PARI) is(n)=isprime(n^9+n^8-1) \\ Charles R Greathouse IV, May 15 2013

CROSSREFS

Cf. A000040, A045546, A125881-A125885, A125965-A125973.

Sequence in context: A039832 A108633 A110478 * A006625 A114382 A120141

Adjacent sequences:  A125964 A125965 A125966 * A125968 A125969 A125970

KEYWORD

nonn

AUTHOR

Artur Jasinski, Dec 14 2006

STATUS

approved

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Last modified April 23 10:58 EDT 2014. Contains 240919 sequences.