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A046020
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Discriminants of imaginary quadratic fields with class number 23 (negated).
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27
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647, 1039, 1103, 1279, 1447, 1471, 1811, 1979, 2411, 2671, 3491, 3539, 3847, 3923, 4211, 4783, 5387, 5507, 5531, 6563, 6659, 6703, 7043, 9587, 9931, 10867, 10883, 12203, 12739, 13099, 13187, 15307, 15451, 16267, 17203, 17851, 18379, 20323
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| Buell, D. A. ``Small Class Numbers and Extreme Values of L-Functions of Quadratic Fields.'' Math. Comput. 139, 786-796, 1977.
Wagner, C. ``Class Number 5, 6 and 7.'' Math. Comput. 65, 785-800, 1996.
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LINKS
| S. Arno, M. L. Robinson and F. S. Wheller, Imaginary Quadratic Fields with Small Odd Class Number
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
Index entries for sequences related to quadratic fields
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CROSSREFS
| Cf. A006203, A013658, A014602, A014603, A046002-A046020.
Sequence in context: A057942 A179963 A187434 * A108821 A035885 A114827
Adjacent sequences: A046017 A046018 A046019 * A046021 A046022 A046023
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KEYWORD
| nonn,fini
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AUTHOR
| Eric Weisstein (eric(AT)weisstein.com)
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EXTENSIONS
| 68 discriminants in this sequence (proved).
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