A168254 - OEIS

A168254

Numbers n with property that n^3+n^2+{3,5} are twin primes.

0, 1, 28, 103, 403, 613, 658, 1018, 1138, 1318, 1678, 2023, 2188, 2383, 2653, 3418, 3853, 3958, 4333, 4393, 4828, 5278, 5908, 6163, 8218, 8428, 8683, 8848, 9028, 9043, 9478, 9868, 10003, 10243, 10978, 11518, 11533, 12133, 12493, 13603, 13633, 14593

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OFFSET

0,3

COMMENTS

All positive terms == 1 mod 3.

LINKS

Harvey P. Dale, Table of n, a(n) for n = 0..1000

MATHEMATICA

Union[Table[If[PrimeQ[n^3+n^2+3]&&PrimeQ[n^3+n^2+5], n, 0], {n, 1, 40000, 3}]]

Select[Range[0, 15000], And @@ PrimeQ[#^3 + #^2 + {3, 5}] &] (* Harvey P. Dale, Dec 12 2012 *)

CROSSREFS

Sequence in context: A212777 A130281 A255218 * A219380 A263200 A223443

Adjacent sequences: A168251 A168252 A168253 * A168255 A168256 A168257

KEYWORD

nonn

AUTHOR

Zak Seidov, Nov 21 2009

STATUS

approved