A125263 - OEIS

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A125263

Numbers n such that n^8 + 7 is prime.

0, 2, 4, 10, 66, 68, 86, 88, 134, 146, 200, 216, 250, 276, 306, 310, 410, 422, 472, 492, 506, 516, 538, 548, 550, 594, 638, 716, 746, 758, 862, 888, 942, 954, 964, 982, 992, 998, 1000, 1016, 1020, 1034, 1108, 1164, 1192, 1234, 1338, 1342, 1350, 1374, 1390

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Carmine Suriano, Table of n, a(n) for n = 1..4683

MATHEMATICA

lst={}; k=8; Do[If[PrimeQ[n^k+k-1], AppendTo[lst, n]], {n, 0, 10^4}]; lst (* Vladimir Joseph Stephan Orlovsky, Sep 10 2008 *)

Select[Range[0, 1500], PrimeQ[#^8+7]&] (* Harvey P. Dale, Sep 04 2024 *)

PROG

(PARI) is(n)=isprime(n^8+7) \\ Charles R Greathouse IV, Feb 17 2017

CROSSREFS

Other sequences of the type "Numbers n such that n^k + k - 1 is prime": A000040 (k=1), A005574 (k=2), A067200 (k=3), A125259 (k=4), A125260 (k=5), A125261 (k=6), A125262 (k=7), this sequence (k=8), A125264 (k=10), A125265 (k=11)..

Sequence in context: A368588 A326325 A080090 * A326949 A215439 A120402

Adjacent sequences: A125260 A125261 A125262 * A125264 A125265 A125266

KEYWORD

nonn

AUTHOR

Zak Seidov, Nov 26 2006

STATUS

approved