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 A233392 #5 Feb 23 2014 22:26:07 %S A233392 152945,598953097717325,1310337508404654670607225, %T A233392 2865540861056875339371758826727925, %U A233392 6266570209938394667955255282885089143981505,13704185035646603836490299749913940382257827996418525,29969294398610683114309782005478125379415264317638704493811785 %N A233392 List of y coordinates of infinite family of points on the Mordell curve x^3-y^2=d over quadratic field Sqrt[13]. %F A233392 a(n)=13(-1 + t[n] + t[n]^2)Sqrt[13 (26 + 10 t[n] + t[n]^2)] where t [n] satisfies the linear recurrence t[n]=1299 t[n-1]-1299 t[n-2] + t[n-2] with t[1]=13, t[2]=23377, t[3]=30349813. %Y A233392 Cf. A233379, A233391. %K A233392 nonn %O A233392 1,1 %A A233392 _Artur Jasinski_, Dec 08 2013