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A106990 Primes of the form 5x^2+5xy+6y^2, with x and y nonnegative. 2
5, 199, 251, 491, 709, 739, 929, 1151, 1201, 1289, 1429, 1451, 1621, 2039, 2129, 2281, 2341, 2551, 2591, 2819, 3019, 3329, 3539, 3581, 3919, 4091, 4519, 4831, 4861, 4889, 4919, 5179, 5381, 5431, 5521, 5749, 5861, 6091, 6659, 6661, 7069 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-95.

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[5, 5, 6, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A211250 A208462 A107445 * A128791 A303136 A244848

Adjacent sequences:  A106987 A106988 A106989 * A106991 A106992 A106993

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 09 2005

STATUS

approved

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Last modified September 23 20:42 EDT 2021. Contains 347617 sequences. (Running on oeis4.)