A051967 Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 2.

15, 30, 35, 39, 42, 51, 66, 87, 102, 110, 123, 143, 146, 165, 182, 203, 221, 230, 258, 285, 327, 357, 402, 447, 635, 645, 678, 741, 843, 902, 957, 1085, 1245, 1298, 1517, 1533, 2037, 2045, 2085, 2397, 2613, 4245, 4277, 4773, 5645, 5957, 6573, 8333

Offset

1,1

References

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

Links

Table of n, a(n) for n=1..48.

R. A. Mollin, H. C. Williams, On real quadratic fields of class number two, Math. Comp. 59 (1992) 625-632.

Crossrefs

Cf. A051966-A051989.

Sequence in context: A347455 A324970 A033898 * A162592 A239247 A291045

Adjacent sequences: A051964 A051965 A051966 * A051968 A051969 A051970

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Jan 04 2000

Status

approved