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 A106928 Primes of the form 2x^2-xy+8y^2, with x and y nonnegative. 1
 2, 23, 53, 71, 107, 149, 197, 239, 263, 281, 317, 389, 443, 491, 557, 569, 599, 641, 653, 683, 827, 953, 977, 1031, 1061, 1163, 1289, 1439, 1451, 1481, 1499, 1523, 1607, 1619, 1667, 1709, 1787, 1871, 1877, 1901, 2069, 2111, 2129, 2153, 2213 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Discriminant=-63. 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 QuadPrimes2[2, -1, 8, 10000] (* see A106856 *) CROSSREFS Sequence in context: A057621 A074809 A084237 * A070934 A296272 A031915 Adjacent sequences:  A106925 A106926 A106927 * A106929 A106930 A106931 KEYWORD nonn,easy AUTHOR T. D. Noe, May 09 2005 STATUS approved

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Last modified September 22 20:30 EDT 2018. Contains 315270 sequences. (Running on oeis4.)