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A106878 Primes of the form 3x^2+xy+3y^2, with x and y any integer. +0
1
3, 5, 7, 13, 17, 47, 73, 83, 97, 103, 157, 167, 173, 223, 227, 257, 283, 293, 307, 313, 353, 367, 383, 397, 433, 467, 503, 523, 563, 577, 587, 593, 607, 643, 647, 677, 727, 733, 773, 787, 797, 853, 857, 887, 937, 983, 997, 1013, 1063, 1097, 1123, 1153 (list; graph; listen)
OFFSET

1,1

COMMENT

Discriminant=-35. See A106856 for more information.

CROSSREFS

Adjacent sequences: A106875 A106876 A106877 this_sequence A106879 A106880 A106881

Sequence in context: A073638 A066464 A062324 this_sequence A079481 A075571 A077133

KEYWORD

nonn,easy

AUTHOR

T. D. Noe (noe(AT)sspectra.com), May 09 2005

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.


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