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%I #7 Sep 21 2021 06:08:50
%S 247,295,355,366,385,386,426,535,609,767,802,815,851,969,995,1027,
%T 1113,1162,1207,1343,1353,1355,1358,1535,1538,1703,1717,1799,1910,
%U 1946,2018,2047,2054,2105,2231,2318,2327,2334,2365,2438,2507,2735
%N Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 12.
%D R. A. Mollin, Quadratics, CRC Press, 1996, Appendix A, Table A3.
%H Georg Fischer, <a href="/A051977/b051977.txt">Table of n, a(n) for n = 1..102</a>
%Y Cf. A051966-A051989.
%K nonn,fini,full
%O 1,1
%A _N. J. A. Sloane_, Jan 04 2000
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