id:A106864 - OEIS Search Results

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Primes of the form 2x^2+2xy+3y^2, with x and y nonnegative.

+0
2

2, 3, 7, 43, 47, 83, 103, 107, 163, 167, 223, 263, 283, 347, 367, 383, 443, 467, 487, 503, 523, 547, 607, 643, 683, 743, 787, 823, 827, 863, 883, 887, 947, 967, 983, 1063, 1087, 1123, 1223, 1303, 1307, 1367, 1423, 1427, 1447, 1483, 1487, 1523, 1583 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Discriminant=-20. See A106856 for more information.`
	MATHEMATICA	`QuadPrimes[2, 2, 3, 10000] (* see A106856 *)`
	CROSSREFS	`Sequence in context: A000945 A126263 A030087 this_sequence A085682 A083369 A000946` `Adjacent sequences: A106861 A106862 A106863 this_sequence A106865 A106866 A106867`
	KEYWORD	`nonn,easy`
	AUTHOR	`T. D. Noe (noe(AT)sspectra.com), May 09 2005`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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