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A161589 Numbers n such that n^3 - 4 and n^3 + 4 are prime. 1
3, 45, 63, 117, 507, 537, 717, 783, 807, 867, 993, 1065, 1335, 1527, 2295, 2355, 2817, 2823, 3093, 3117, 3357, 4173, 5067, 5085, 5535, 6087, 6333, 6357, 6393, 6987, 7407, 7713, 7767, 8577, 8877, 9123, 9615, 9945, 10065, 10377, 10575, 10725, 10845, 12795 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
3^3 - 4 = 23, 3^3 + 4 = 31
LINKS
MATHEMATICA
lst={}; Do[a=n^3; If[PrimeQ[a-4]&&PrimeQ[a+4], AppendTo[lst, n]], {n, 8!}]; lst
Select[Range[2, 13000], And@@PrimeQ[#^3+{4, -4}]&] (* Harvey P. Dale, May 13 2012 *)
CROSSREFS
Subsequence of A016945.
Sequence in context: A101236 A119182 A178337 * A360966 A079038 A101790
KEYWORD
nonn
AUTHOR
EXTENSIONS
Edited by Charles R Greathouse IV, Nov 11 2009
STATUS
approved

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Last modified May 19 04:10 EDT 2024. Contains 372666 sequences. (Running on oeis4.)