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 A201226 #13 Oct 24 2024 04:17:54
%S A201226 476425,3499913125,20477027135825,118398467411226125,
%T A201226 684132799477496491225,3952927722012200964659125,
%U A201226 22840018438688230285823134625,131969623469705492999569294932125,762520461852550579069844280191898025
%N A201226 Values y for infinite sequence x^3-y^2 = d with decreasing coefficient r=sqrt(x)/d which tend to 1/(1350*sqrt(5))or infinity family of solutions Mordell curve with extension sqrt(5).
%C A201226 For x values see A201225.
%C A201226 For d values see A201227.
%H A201226 <a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (6118,-1970319,33501524,-1970319,6118,-1).
%F A201226 G.f.: -((25*(-19057-23405799*z-130714666*z^2+9631442*z^3-30549*z^4+5*z^5))/((1-5778*z+z^2)*(1-322*z+z^2)*(1-18*z+z^2))).
%F A201226 a(n) = 6118*a(n-1) - 1970319*a(n-2) + 33501524*a(n-3) - 1970319*a(n-4) + 6118*a(n-5) - a(n-6).
%t A201226 LinearRecurrence[{6118,-1970319,33501524,-1970319,6118,-1},{476425,3499913125,20477027135825,118398467411226125,684132799477496491225,3952927722012200964659125},20] (* _Harvey P. Dale_, Jun 12 2013 *)
%Y A201226 Cf. A201225, A201227.
%K A201226 nonn,easy
%O A201226 1,1
%A A201226 _Artur Jasinski_, Nov 28 2011