A106926 Primes of the form 2x^2+xy+8y^2, with x and y nonnegative.

2, 11, 29, 113, 137, 179, 191, 233, 347, 359, 401, 431, 449, 617, 659, 701, 743, 809, 821, 863, 911, 947, 1019, 1103, 1187, 1229, 1283, 1367, 1373, 1409, 1493, 1583, 1733, 1913, 1997, 2003, 2027, 2039, 2081, 2087, 2207, 2333, 2381, 2447, 2531

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: A092275 A295841 A086252 * A220095 A133558 A285812

Adjacent sequences: A106923 A106924 A106925 * A106927 A106928 A106929

Keyword

nonn,easy

Author

T. D. Noe, May 09 2005

Status

approved