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A188459 Numbers n such that 4*n^2 + 4*n + 653 is a prime. 2
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 20, 22, 23, 25, 26, 27, 29, 30, 31, 32, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 64, 66, 68, 69, 70, 71, 74, 76, 77, 78, 79, 80, 83, 87, 88, 89, 90, 91, 92, 94, 97, 98, 99, 102, 106, 107, 108, 113, 114 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

MATHEMATICA

Select[Range[0, 150], PrimeQ[4#^2+4#+653]&]  (* Harvey P. Dale, Apr 02 2011 *)

PROG

(MAGMA) [n: n in [0..250] | IsPrime(4*n^2+4*n+653)]; // Vincenzo Librandi, Apr 01 2011

CROSSREFS

Cf. A145202 (primes produced by n).

Sequence in context: A291149 A322463 A275156 * A146295 A123719 A113221

Adjacent sequences:  A188456 A188457 A188458 * A188460 A188461 A188462

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Apr 01 2011

STATUS

approved

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Last modified February 28 08:11 EST 2020. Contains 332321 sequences. (Running on oeis4.)