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 A233379 #9 Feb 23 2014 22:22:15 %S A233379 2860,7105509268,11974446516944860,20174575425969672027268, %T A233379 33990165031985542839913742860,57266698026205846472927526499559668, %U A233379 96483047367913681099665838319655915836860,162554831171498439057365601894265975887204106468,273872704667306430073374450872850543845308421200346860 %N A233379 List of x coordinates of infinite family of points on the Mordell curve x^3-y^2=d over quadratic field Sqrt[13]. %C A233379 a(1)=A202054(5). %C A233379 For y values see A233392 %C A233379 For d values see A233391 %F A233379 a(n)=(13 (-1 + 4 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. %F A233379 (A233379(n))^3-(A233392(n))^2=A233391(n). %Y A233379 Cf. A233391, A233392, A202054. %K A233379 nonn %O A233379 1,1 %A A233379 _Artur Jasinski_, Dec 08 2013