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A106880 Primes of the form x^2+xy+9y^2, with x and y nonnegative. 1
11, 29, 71, 109, 149, 151, 179, 191, 211, 239, 281, 331, 359, 379, 389, 401, 421, 449, 491, 499, 541, 571, 599, 631, 641, 659, 701, 739, 751, 809, 821, 911, 919, 991, 1009, 1019, 1031, 1051, 1129, 1171, 1201, 1229, 1289, 1381, 1409, 1429, 1439, 1451 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-35. See A106856 for more information.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

QuadPrimes[1, 1, 9, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A216296 A099909 A106881 * A135064 A179502 A053703

Adjacent sequences:  A106877 A106878 A106879 * A106881 A106882 A106883

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 09 2005

STATUS

approved

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Last modified May 24 18:52 EDT 2013. Contains 225630 sequences.