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 A107188 Primes of the form 6x^2+13y^2. 3
 13, 19, 37, 67, 109, 163, 229, 307, 331, 349, 379, 397, 421, 499, 541, 613, 619, 643, 661, 691, 709, 733, 739, 787, 811, 853, 877, 1021, 1051, 1123, 1237, 1549, 1579, 1597, 1627, 1669, 1723, 1747, 1789, 1861, 1867, 1987, 2179, 2203, 2221, 2251 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Discriminant=-312. See A107132 for more information. LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 FORMULA The primes are congruent to {13, 19, 37, 67, 85, 109, 115, 163, 187, 229, 253, 301, 307} (mod 312). - T. D. Noe, May 02 2008 MATHEMATICA QuadPrimes[6, 0, 13, 10000] (* see A106856 *) PROG (MAGMA) [ p: p in PrimesUpTo(3000) | p mod 312 in {13, 19, 37, 67, 85, 109, 115, 163, 187, 229, 253, 301, 307} ]; // Vincenzo Librandi, Jul 26 2012 CROSSREFS Cf. A139827. Sequence in context: A040070 A048523 A000922 * A029478 A216101 A096455 Adjacent sequences:  A107185 A107186 A107187 * A107189 A107190 A107191 KEYWORD nonn,easy AUTHOR T. D. Noe, May 13 2005 STATUS approved

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Last modified May 23 12:14 EDT 2013. Contains 225587 sequences.