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A106899 Primes of the form 2x^2-xy+6y^2, with x and y nonnegative. +0
1
2, 7, 53, 89, 97, 131, 263, 331, 337, 353, 479, 491, 521, 541, 643, 709, 719, 883, 911, 1021, 1093, 1117, 1229, 1231, 1427, 1489, 1493, 1511, 1531, 1699, 1787, 1789, 1907, 1999, 2063, 2089, 2129, 2131, 2399, 2591, 2621, 2657, 2707, 2711, 2791 (list; graph; listen)
OFFSET

1,1

COMMENT

Discriminant=-47. See A106856 for more information.

MATHEMATICA

QuadPrimes[2, -1, 6, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A118191 A005588 A106898 this_sequence A119772 A104084 A053465

Adjacent sequences: A106896 A106897 A106898 this_sequence A106900 A106901 A106902

KEYWORD

nonn,easy

AUTHOR

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

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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.


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