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A125965 Numbers n for which n^8+n^7-1 is prime. 11
2, 3, 4, 7, 8, 9, 18, 23, 32, 36, 41, 52, 54, 55, 56, 60, 68, 74, 80, 82, 87, 93, 107, 115, 140, 142, 146, 154, 162, 165, 170, 189, 227, 238, 253, 262, 263, 269, 276, 285, 300, 304, 305, 306, 308, 310, 315, 317, 332, 339, 350, 361, 363, 367, 371, 384, 386, 390 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..58.

MATHEMATICA

Select[Range[500], PrimeQ[#^8+#^7-1]&]  (* Harvey P. Dale, Feb 23 2011 *)

PROG

(PARI) select(ispseudoprime, vector(500, n, n^8+n^7-1)) \\ Charles R Greathouse IV, Feb 23, 2011

CROSSREFS

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

Sequence in context: A029783 A112736 A059930 * A111116 A113318 A056033

Adjacent sequences:  A125962 A125963 A125964 * A125966 A125967 A125968

KEYWORD

nonn

AUTHOR

Artur Jasinski, Dec 14 2006

STATUS

approved

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Last modified January 18 13:54 EST 2019. Contains 319271 sequences. (Running on oeis4.)