This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A050960 #7 May 24 2013 07:08:06 %S A050960 541,593,661,701,857,1061,1109,1217,1237,1709,1733,1949,2333,2957, %T A050960 3677,3701,4373,5237,5309,7013,8693,9533,10853,12437 %N A050960 Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 11. %D A050960 R. A. Mollin, Quadratics, CRC Press, 1996, Appendix A. %H A050960 R. A. Mollin and H. C. Williams, <a href="http://projecteuclid.org/euclid.pja/1195512263">On a determination of real quadratic fields of class number one and related continued fraction period length less than 25</a>, Proc. Japan Acad. Ser. A Math. Sci. Volume 67, Number 1 (1991), 20-25. (cf. Table 3.1) %Y A050960 Cf. A050950-A050969, A051962-A051965. %K A050960 nonn,fini,full %O A050960 1,1 %A A050960 _N. J. A. Sloane_, Jan 04 2000