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Search: id:A033268
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| A033268 |
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Numbers n such that every genus of binary quadratic forms of discriminant -4n consists of a single class and the class number h(-4n) = 8. |
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+0
2
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| 105, 120, 165, 168, 210, 240, 273, 280, 312, 330, 345, 357, 385, 408, 462, 520, 760
(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, p. 60.
G. B. Mathews, Theory of Numbers, Chelsea, no date, p. 263.
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CROSSREFS
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A subsequence of A000926.
Sequence in context: A039553 A135999 A162304 this_sequence A095643 A097217 A115935
Adjacent sequences: A033265 A033266 A033267 this_sequence A033269 A033270 A033271
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KEYWORD
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nonn,fini,full
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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