A050967 Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 18.

139, 163, 283, 417, 419, 566, 633, 737, 758, 781, 787, 998, 1141, 1142, 1163, 1286, 1307, 1337, 1461, 1718, 1829, 1931, 2243, 2537, 2653, 2966, 2973, 3013, 3117, 3629, 3713, 4061, 4269, 4541, 4781, 6629, 6717, 7037, 7133, 7181, 8013, 8157, 8197, 8301, 8777, 9957, 10277, 10493, 11429, 11957, 12293, 13373, 13917, 16373, 18653, 18813, 18893, 20597, 23597, 24173, 26837, 30917

Offset: 1

Author

N. J. A. Sloane, Jan 04 2000

Keywords

• nonn
• fini
• full

References

• R. A. Mollin, Quadratics, CRC Press, 1996, Appendix A.

Links

• R. A. Mollin and H. C. Williams, On a determination of real quadratic fields of class number one and related continued fraction period length less than 25, Proc. Japan Acad. Ser. A Math. Sci. Volume 67, Number 1 (1991), 20-25. (cf. Table 3.1)

Crossrefs

Cf. A050950-A050969, A051962-A051965.

Extensions

a(42) and following from Georg Fischer, Sep 20 2021