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A051977 Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 12. 0
247, 295, 355, 366, 385, 386, 426, 535, 609, 767, 802, 815, 851, 969, 995, 1027, 1113, 1162, 1207, 1343, 1353, 1355, 1358, 1535, 1538, 1703, 1717, 1799, 1910, 1946, 2018, 2047, 2054, 2105, 2231, 2318, 2327, 2334, 2365, 2438, 2507, 2735 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

R. A. Mollin, Quadratics, CRC Press, 1996, Appendix A, Table A3.

LINKS

Table of n, a(n) for n=1..42.

CROSSREFS

Cf. A051966-A051989.

Sequence in context: A177212 A044983 A175043 * A177213 A283737 A020313

Adjacent sequences:  A051974 A051975 A051976 * A051978 A051979 A051980

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane, Jan 04 2000

STATUS

approved

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Last modified April 20 01:36 EDT 2021. Contains 343117 sequences. (Running on oeis4.)