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A106907 Primes of the form 4x^2+3xy+4y^2, with x and y nonnegative. 2
11, 181, 401, 521, 619, 709, 719, 829, 911, 971, 1511, 1709, 1831, 1879, 2039, 2161, 2179, 2281, 2579, 2861, 3001, 3061, 3221, 3259, 3359, 3499, 4051, 4159, 4409, 4691, 4871, 4931, 4951, 5009, 5171, 5351, 5449, 5569, 5591, 5839, 6131, 6449 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-55.

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[4, 3, 4, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A157382 A174979 A157945 * A020456 A036935 A205088

Adjacent sequences:  A106904 A106905 A106906 * A106908 A106909 A106910

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 09 2005

STATUS

approved

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Last modified December 13 03:41 EST 2019. Contains 329968 sequences. (Running on oeis4.)