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A194155 Primes of the form k^8 + (k+1)^8. 12
257, 2070241, 17995718017, 188386299457, 2505920246017, 3192202523137, 5072985298081, 11905609260481, 21370852274017, 766108283826337, 970961614082017, 2348771079002657, 2887223180589697, 9007197376151521, 55110306149736577, 77802445498340417 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Prime 8-dimensional centered cube numbers. This is to dimension 8 as A152913 is to dimension 4.
LINKS
EXAMPLE
a(2) = 5^8 + (5+1)^8 = 2070241 is prime.
a(3) = 17^8 + (17+1)^8.
a(4) = 23^8 + (23+1)^8.
a(5) = 32^8 + (32+1)^8.
a(6) = 33^8 + (33+1)^8.
MATHEMATICA
Select[Table[n^8+(n+1)^8, {n, 0, 900}], PrimeQ] (* Vincenzo Librandi, Dec 07 2011 *)
PROG
(Magma) [ a: n in [0..200] | IsPrime(a) where a is n^8+(n+1)^8 ]; // Vincenzo Librandi, Dec 07 2011
CROSSREFS
Sequence in context: A103349 A291506 A275098 * A238614 A308672 A308675
KEYWORD
nonn,easy
AUTHOR
Jonathan Vos Post, Aug 17 2011
STATUS
approved

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Last modified March 18 21:02 EDT 2024. Contains 370951 sequences. (Running on oeis4.)