A051971 Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 6.

70, 105, 111, 114, 178, 183, 187, 267, 273, 303, 371, 374, 407, 418, 470, 498, 518, 545, 551, 590, 602, 618, 642, 803, 805, 822, 923, 1005, 1007, 1034, 1118, 1167, 1173, 1178, 1202, 1581, 1605, 1623, 1653, 1707, 1749, 1790, 2103, 2109, 2147

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..79

Crossrefs

Cf. A051966-A051989.

Sequence in context: A156718 A007621 A353061 * A180274 A075004 A043222

Adjacent sequences: A051968 A051969 A051970 * A051972 A051973 A051974

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Jan 04 2000

Status

approved