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A051993
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Consider real quadratic fields of ERD-type with class groups of exponent 2 and discriminants of the form D = r^2*k^2+k, k odd; sequence gives values of r.
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8
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3, 4, 5, 1, 6, 2, 1, 8, 3, 2, 2, 1, 11, 12, 13, 1, 14, 2, 1, 5, 3, 16, 17, 6, 19, 4, 1, 22, 22, 23, 2, 2, 10, 2, 1, 31, 34, 34, 2, 1, 5, 7, 36, 37, 2, 1, 13, 8, 8, 1, 14, 9, 2, 46, 47, 16, 3, 4, 56, 3, 2, 58, 20, 12, 2, 3, 2, 23, 10, 2, 24, 73, 5, 4, 2, 16, 2, 4, 8, 8, 19, 98, 20, 2, 2, 4, 24, 11, 122, 4, 4, 142, 26, 68, 242, 278, 22, 32
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OFFSET
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1,1
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REFERENCES
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R. A. Mollin, Quadratics, CRC Press, 1996, Appendix A, Table A4(1), column r.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,fini,full
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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