A154616 Primes of the form (4*n^2-8*n-9)/3.

17, 29, 61, 157, 257, 337, 641, 701, 829, 1117, 1277, 1361, 2129, 2237, 3329, 4177, 4481, 4637, 4957, 5981, 6529, 7297, 7901, 8317, 9181, 9629, 9857, 10321, 11777, 12541, 13597, 17021, 19841, 21841, 22877, 23581, 26881, 29201, 32029, 34129, 37181, 39901, 40829

Offset: 1

Author

Vincenzo Librandi, Jan 18 2009

Keywords

• nonn
• easy

Comments

Also primes of the form (k^2-13)/3. - Chai Wah Wu, Jul 10 2014

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A154618.

Programs

Mathematica

Select[Table[(4*n^2-8*n-9)/3,{n,3,200}],PrimeQ] (* Vincenzo Librandi, Jul 23 2012 *)

Extensions

Corrected by Bruno Berselli, Jun 24 2010

Checked by N. J. A. Sloane, Jun 25 2010