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Search: id:A033207
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| A033207 |
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Primes of form x^2+7*y^2. |
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+0
7
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| 7, 11, 23, 29, 37, 43, 53, 67, 71, 79, 107, 109, 113, 127, 137, 149, 151, 163, 179, 191, 193, 197, 211, 233, 239, 263, 277, 281, 317, 331, 337, 347, 359, 373, 379, 389, 401, 421, 431, 443, 449, 457, 463, 487, 491
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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D. Cox, "Primes of Form x^2 + n y^2", Wiley, 1989.
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LINKS
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T. D. Noe, Table of n, a(n) for n=1..1000
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FORMULA
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The primes are congruent to {1, 7, 9, 11, 15, 23, 25} (mod 28). - T. D. Noe (noe(AT)sspectra.com), Apr 29 2008
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CROSSREFS
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Cf. A002344, A002345
Cf. A139643.
Sequence in context: A081352 A039511 A103667 this_sequence A095084 A067790 A089056
Adjacent sequences: A033204 A033205 A033206 this_sequence A033208 A033209 A033210
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KEYWORD
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nonn
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AUTHOR
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njas
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