A051978 Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 13.

746, 778, 1082, 1241, 1514, 1649, 2042, 2426, 3085, 3338, 3349, 4058, 4573, 4589, 4885, 5389, 7418, 7421, 8765, 9389, 9965, 10085, 12965, 14837, 16277, 17533, 19357, 21053, 22373, 25877, 30733, 31373, 31853, 36965, 38597, 39437, 40757, 53477, 69893, 81413

Offset

1,1

References

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

Links

Table of n, a(n) for n=1..40.

Crossrefs

Cf. A051966-A051989.

Sequence in context: A066396 A099819 A344014 * A235732 A235513 A252560

Adjacent sequences: A051975 A051976 A051977 * A051979 A051980 A051981

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Jan 04 2000

Extensions

a(37) and following from Georg Fischer, Sep 21 2021

Status

approved