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Search: id:A139971
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| A139971 |
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Primes of the form 5x^2+104y^2. |
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+0
1
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| 5, 109, 149, 229, 349, 421, 461, 509, 541, 661, 709, 821, 941, 1021, 1061, 1181, 1229, 1549, 1669, 1709, 1789, 1861, 2069, 2221, 2269, 2309, 2381, 2621, 2741, 2749, 2789, 3061, 3109, 3229, 3469, 3541, 3581, 3989, 4349, 4621, 4789, 4909
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Discriminant=-2080. See A139827 for more information.
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FORMULA
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Except for 5, the primes are congruent to {21, 109, 141, 149, 189, 229, 301, 349, 421, 461, 501, 509} (mod 520).
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MATHEMATICA
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QuadPrimes[5, 0, 104, 10000] (* see A106856 *)
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CROSSREFS
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Sequence in context: A142479 A113056 A048564 this_sequence A128110 A142510 A012239
Adjacent sequences: A139968 A139969 A139970 this_sequence A139972 A139973 A139974
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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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