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A051980 Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 15. 0
481, 1417, 1466, 2858, 3065, 3589, 3785, 3977, 4538, 5317, 5941, 6641, 6749, 7082, 11861, 12701, 12833, 13793, 14909, 16589, 17153, 18185, 18365, 18581, 20885, 27989, 29069, 32885, 33365, 44813, 47165, 51173, 66197, 67973, 70493 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

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

CROSSREFS

Cf. A051966-A051989.

Sequence in context: A008410 A020286 A064909 * A020271 A165384 A165376

Adjacent sequences:  A051977 A051978 A051979 * A051981 A051982 A051983

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Jan 04 2000

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Last modified February 18 00:14 EST 2012. Contains 206085 sequences.