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A106976 Primes of the form 4x^2+3xy+6y^2, with x and y any integer. 1
7, 13, 67, 109, 139, 181, 199, 223, 241, 277, 313, 439, 457, 463, 499, 523, 547, 613, 631, 643, 661, 673, 691, 811, 919, 937, 991, 1009, 1021, 1051, 1069, 1093, 1153, 1213, 1231, 1321, 1327, 1399, 1483, 1543, 1579, 1657, 1669, 1741, 1747, 1789 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-87. See A106856 for more information.

LINKS

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

MATHEMATICA

Union[QuadPrimes[4, 3, 6, 10000], QuadPrimes[4, -3, 6, 10000]] (* see A106856 *)

CROSSREFS

Sequence in context: A133664 A143794 A159198 * A219908 A098478 A174878

Adjacent sequences:  A106973 A106974 A106975 * A106977 A106978 A106979

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 09 2005

STATUS

approved

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Last modified May 23 15:50 EDT 2013. Contains 225610 sequences.