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Search: id:A107005
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A107005 Primes of the form 4x^2+4xy+7y^2, with x and y nonnegative. +0
2
7, 31, 79, 103, 127, 199, 223, 271, 367, 439, 463, 607, 631, 823, 919, 967, 991, 1087, 1231, 1279, 1303, 1327, 1423, 1447, 1543, 1567, 1663, 1831, 1879, 1951, 1999, 2143, 2239, 2311, 2383, 2503, 2551, 2719, 2791, 2887, 3079, 3271, 3319, 3391 (list; graph; listen)
OFFSET

1,1

COMMENT

Discriminant=-96. See A106856 for more information.

CROSSREFS

Sequence in context: A033199 A003550 A107006 this_sequence A118934 A118935 A055899

Adjacent sequences: A107002 A107003 A107004 this_sequence A107006 A107007 A107008

KEYWORD

nonn,easy

AUTHOR

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

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.


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