A051986 Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 21.
394, 865, 1769, 1985, 2561, 2762, 3098, 4385, 5465, 5485, 5965, 6122, 7141, 7265, 10565, 11101, 11485, 11581, 13285, 13466, 14381, 14765, 16442, 21365, 22565, 28373, 34493, 35197, 36221, 44861, 47477, 48485, 48941, 51365, 54317
Offset: 1
References
- R. A. Mollin, Quadratics, CRC Press, 1996, Appendix A, Table A3.
Links
- Georg Fischer, Table of n, a(n) for n = 1..59