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 A140623 Primes of the form 35x^2+30xy+51y^2. 1
 131, 179, 251, 419, 491, 659, 971, 1091, 1499, 1811, 1979, 2339, 2531, 2939, 3251, 3299, 3371, 3539, 3779, 3851, 4091, 4211, 4931, 5099, 5171, 5651, 6491, 6659, 6899, 6971, 7019, 7211, 7331, 8219, 8291, 9491, 9539, 9851, 10091, 10139, 10331 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Discriminant=-6240. Also primes of the form 36x^2+12xy+131y^2. In base 12, the sequence is XE, 12E, 18E, 2XE, 34E, 46E, 68E, 76E, X4E, 106E, 118E, 142E, 156E, 184E, 1X6E, 1XXE, 1E4E, 206E, 222E, 228E, 244E, 252E, 2X2E, 2E4E, 2EXE, 332E, 390E, 3X2E, 3EXE, 404E, 408E, 420E, 42XE, 490E, 496E, 55XE, 562E, 584E, 5X0E, 5X4E, 5E8E, where X is 10 and E is 11. Moreover, the discriminant is -3740. - Walter Kehowski, Jun 01 2008 LINKS Vincenzo Librandi and Ray Chandler, Table of n, a(n) for n = 1..10000 [First 1000 terms from Vincenzo Librandi] N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references) MATHEMATICA Union[QuadPrimes2[35, 30, 51, 10000], QuadPrimes2[35, -30, 51, 10000]] (* see A106856 *) CROSSREFS Cf. A140633. Sequence in context: A132254 A087832 A335271 * A050261 A180544 A032750 Adjacent sequences:  A140620 A140621 A140622 * A140624 A140625 A140626 KEYWORD nonn,easy AUTHOR T. D. Noe, May 19 2008 EXTENSIONS Corrected and extended b-file - Ray Chandler, Aug 02 2014 STATUS approved

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Last modified July 27 07:50 EDT 2021. Contains 346304 sequences. (Running on oeis4.)