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 A052475 #14 Nov 23 2021 08:21:13 %S A052475 40,60,65,85,105,120,140,165,185,205,220,265,280,285,305,345,365,380, %T A052475 385,440,460,465,485,545,565,620,645,665,685,705,745,760,805,860,865, %U A052475 885,920,965,1005,1065,1085,1165,1180,1185,1205,1240,1245,1265,1285 %N A052475 Discriminants of real quadratic number fields with class number 2 such that Hilbert class field has splitting field Q(sqrt(5)). %D A052475 H. Cohen, Advanced Topics in Computational Number Theory, Springer, 2000, pp. 534-535. %H A052475 Henri Cohen and X.-F. Roblot, <a href="http://www.ams.org/mcom/2000-69-231/S0025-5718-99-01111-4/S0025-5718-99-01111-4.pdf">Computing the Hilbert Class Field of Real Quadratic Fields</a>, Math. Comp. 69 (2000), 1229-1244. %Y A052475 Cf. A035120, A003656, A052476, A052477, A052478, A052479. %K A052475 nonn,nice %O A052475 1,1 %A A052475 _N. J. A. Sloane_, Mar 15 2000 %E A052475 More terms from Antonio G. Astudillo (afg_astudillo(AT)hotmail.com), May 15 2002