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Search: id:A139878
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| A139878 |
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Primes of the form 8x^2+8xy+23y^2. |
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+0
2
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| 23, 71, 191, 239, 263, 359, 431, 599, 743, 863, 911, 1031, 1103, 1367, 1439, 1583, 1607, 1871, 2039, 2087, 2111, 2207, 2423, 2447, 2543, 2591, 2711, 2879, 2927, 3119, 3623, 3719, 3767, 4127, 4271, 4391, 4463, 4799, 4943, 4967, 5231, 5279
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Discriminant=-672. See A139827 for more information.
Also primes of the forms 23x^2+16xy+32y^2, 15x^2+6xy+23y^2, and 23x^2+4xy+44y^2. See A140633. - T. D. Noe (noe(AT)sspectra.com), May 19 2008
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FORMULA
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The primes are congruent to {23, 71, 95} (mod 168).
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CROSSREFS
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Sequence in context: A086104 A142405 A139962 this_sequence A035072 A044161 A044542
Adjacent sequences: A139875 A139876 A139877 this_sequence A139879 A139880 A139881
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KEYWORD
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nonn,easy
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AUTHOR
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T. D. Noe (noe(AT)sspectra.com), May 02 2008
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