A094320 - OEIS

A094320

Numbers n >= 0 such that Lehmer's polynomial 263*n^2+3 is prime.

0, 4, 14, 26, 40, 124, 130, 136, 194, 224, 250, 254, 364, 376, 410, 430, 464, 494, 536, 560, 604, 620, 640, 656, 724, 730, 794, 836, 1004, 1010, 1036, 1064, 1090, 1144, 1186, 1300, 1330, 1430, 1484, 1486, 1510, 1514, 1570, 1580, 1586, 1606, 1624, 1774, 1796, 1834

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OFFSET

0,2

COMMENTS

All terms == 0, 4 or 6 (mod 10). - Robert Israel, Jan 15 2016

LINKS

Robert Israel, Table of n, a(n) for n = 0..10000

MAPLE

select(n -> isprime(263*n^2+3), 2*[$0..2000]); # Robert Israel, Jan 15 2016

MATHEMATICA

Select[Range[0, 2000], PrimeQ[263 #^2 + 3] &] (* Vincenzo Librandi, Jan 14 2016 *)

PROG