

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
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OFFSET

1,1


COMMENTS

3^3  4 = 23, 3^3 + 4 = 31


LINKS



MATHEMATICA

lst={}; Do[a=n^3; If[PrimeQ[a4]&&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



KEYWORD

nonn


AUTHOR



EXTENSIONS



STATUS

approved



