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A106927 Primes of the form 2x^2+xy+8y^2, with x and y any integer. 1
2, 11, 23, 29, 53, 71, 107, 113, 137, 149, 179, 191, 197, 233, 239, 263, 281, 317, 347, 359, 389, 401, 431, 443, 449, 491, 557, 569, 599, 617, 641, 653, 659, 683, 701, 743, 809, 821, 827, 863, 911, 947, 953, 977, 1019, 1031, 1061, 1103, 1163, 1187, 1229 (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

Union[QuadPrimes2[2, 1, 8, 10000], QuadPrimes2[2, -1, 8, 10000]] (* see A106856 *)

CROSSREFS

Sequence in context: A087340 A246622 A237813 * A158189 A218255 A256481

Adjacent sequences:  A106924 A106925 A106926 * A106928 A106929 A106930

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 09 2005

STATUS

approved

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Last modified October 15 15:14 EDT 2019. Contains 328030 sequences. (Running on oeis4.)