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Search: id:A003644
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| A003644 |
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Discriminants of imaginary quadratic fields with 1 class per genus (a finite sequence).
(Formerly M2333)
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+0
1
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| 3, 4, 7, 8, 11, 15, 19, 20, 24, 35, 40, 43, 51, 52, 67, 84, 88, 91, 115, 120, 123, 132, 148, 163, 168, 187, 195, 228, 232, 235, 267, 280, 312, 340, 372, 403, 408, 420, 427, 435, 483, 520, 532, 555, 595, 627, 660, 708, 715, 760, 795, 840, 1012, 1092, 1155, 1320
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Z. I. Borevich and I. R. Shafarevich, Number Theory. Academic Press, NY, 1966, pp. 425-430.
L. E. Dickson, Introduction to the Theory of Numbers. Dover, NY, 1957, p. 85.
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CROSSREFS
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Sequence in context: A133675 A050122 A003657 this_sequence A033195 A107819 A050032
Adjacent sequences: A003641 A003642 A003643 this_sequence A003645 A003646 A003647
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KEYWORD
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nonn,fini,nice
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein
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