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A106960 Primes of the form 2x^2+xy+10y^2, with x and y any integer. 1
2, 11, 13, 31, 89, 101, 163, 167, 181, 241, 257, 263, 283, 313, 367, 383, 389, 457, 467, 487, 499, 523, 547, 571, 617, 653, 719, 743, 751, 809, 821, 877, 919, 953, 971, 1031, 1091, 1151, 1187, 1193, 1201, 1217, 1223, 1231, 1237, 1361, 1423, 1471 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-79.

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, 10, 10000], QuadPrimes2[2, -1, 10, 10000]] (* see A106856 *)

CROSSREFS

Sequence in context: A019407 A075781 A023288 * A084405 A041447 A291464

Adjacent sequences:  A106957 A106958 A106959 * A106961 A106962 A106963

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 09 2005

STATUS

approved

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Last modified October 16 09:02 EDT 2021. Contains 348041 sequences. (Running on oeis4.)