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Search: id:A139969
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| A139969 |
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Primes of the form 21x^2+22y^2. |
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+0
2
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| 43, 109, 211, 277, 373, 541, 547, 571, 613, 739, 877, 1051, 1117, 1381, 1429, 1579, 1597, 1723, 1789, 1933, 2053, 2221, 2251, 2389, 2437, 2683, 2851, 3109, 3187, 3229, 3571, 3637, 3691, 3739, 3907, 4099, 4243, 4363, 4813, 4957, 5077, 5419
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Discriminant=-1848. See A139827 for more information.
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FORMULA
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The primes are congruent to {43, 85, 109, 205, 211, 277, 373, 403, 541, 547, 571, 589, 613, 667, 739, 835, 877, 1003, 1051, 1075, 1117, 1261, 1339, 1381, 1429, 1579, 1597, 1723, 1789, 1843} (mod 1848).
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MATHEMATICA
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QuadPrimes[21, 0, 22, 10000] (* see A106856 *)
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CROSSREFS
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Sequence in context: A106923 A115586 A001133 this_sequence A142055 A068699 A052089
Adjacent sequences: A139966 A139967 A139968 this_sequence A139970 A139971 A139972
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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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