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Search: id:A139892
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| A139892 |
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Primes of the form 10x^2+21y^2. |
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+0
1
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| 31, 61, 181, 199, 229, 271, 349, 439, 661, 829, 1021, 1039, 1069, 1231, 1279, 1399, 1669, 1741, 1861, 1879, 1951, 2029, 2239, 2341, 2551, 2719, 2749, 2791, 3079, 3181, 3391, 3541, 3559, 3631, 3709, 3919, 4021, 4231, 4261, 4549, 4591, 4639
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Discriminant=-840. See A139827 for more information.
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FORMULA
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The primes are congruent to {31, 61, 181, 199, 229, 271, 349, 391, 439, 559, 661, 829} (mod 840).
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CROSSREFS
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Sequence in context: A132230 A136066 A114991 this_sequence A088464 A088463 A078855
Adjacent sequences: A139889 A139890 A139891 this_sequence A139893 A139894 A139895
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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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