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 A202056 #12 Feb 23 2014 22:13:10 %S A202056 648,219375,41472,6021000,1482975,69641775,3888000,483568488 %N A202056 Smallest d such that Mordell's elliptic curve x^3-y^2=d (for positive d) has an integral point in the quadratic extension sqrt(A202057(n)). %C A202056 The existence of such d for each A202057(n) is conjectural following the conjecture in A201278. %C A202056 For x values see A202054. %C A202056 For y values see A202055. %F A202056 a(n) = A202054(n)^3 - A202055(n)^2 %Y A202056 Cf. A201278, A202054, A202055, A202057. %K A202056 nonn,hard,more %O A202056 1,1 %A A202056 _Artur Jasinski_, Dec 10 2011