A051985 Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 20.

511, 559, 606, 790, 1002, 1065, 1079, 1182, 1195, 1374, 1415, 1510, 1513, 1537, 1603, 1687, 1961, 2193, 2215, 2455, 2471, 2627, 2863, 3155, 3239, 3295, 3383, 3647, 3746, 3857, 4163, 4295, 4458, 4535, 4595, 4727, 4782, 4847, 4922, 5038

Offset

1,1

References

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

Links

Georg Fischer, Table of n, a(n) for n = 1..161

Crossrefs

Cf. A051966-A051989.

Sequence in context: A145588 A345363 A242218 * A103206 A277172 A023691

Adjacent sequences: A051982 A051983 A051984 * A051986 A051987 A051988

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Jan 04 2000

Status

approved