A088759 Numbers n such that (4n+3)^2 + (4n+2)^2 is prime.

0, 3, 5, 7, 8, 10, 12, 17, 20, 22, 25, 27, 30, 32, 38, 40, 43, 50, 55, 57, 72, 82, 83, 85, 97, 102, 107, 108, 110, 112, 113, 115, 118, 122, 123, 128, 133, 140, 147, 150, 160, 168, 173, 175, 177, 183, 187, 192, 198, 200, 203, 207, 212, 213, 217, 218, 220, 225, 230

Offset

1,2

Comments

Numbers n such that 32n^2 + 40n + 13 is prime. - Vincenzo Librandi, Dec 12 2011

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

Mathematica

Select[Range[0, 400], PrimeQ[32#^2+40 #+13]&] (* Vincenzo Librandi, Dec 12 2011 *)

Prog

(PARI) isA088759(n)=isprime((4*n+3)^2+(4*n+2)^2) \\ Michael B. Porter, Apr 15 2010
(Magma) [n: n in [0..300] | IsPrime(32*n^2+40*n+13)]; // Vincenzo Librandi, Dec 12 2011

Crossrefs

Cf. A087872.

Sequence in context: A191230 A191202 A024977 * A227130 A258025 A239419

Adjacent sequences: A088756 A088757 A088758 * A088760 A088761 A088762

Keyword

nonn,easy

Author

Ray Chandler, Oct 19 2003

Extensions

The first term 0 inserted by Vincenzo Librandi, Dec 12 2011

Status

approved