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 A174775 #14 Sep 08 2022 08:45:51
%S A174775 0,12,1752,255780,37342128,5451694908,795910114440,116197425013332,
%T A174775 16964028141832032,2476631911282463340,361571295019097815608,
%U A174775 52786932440876998615428,7706530565073022700036880
%N A174775 y-values in the solution to x^2 - 37*y^2 = 1.
%C A174775 The corresponding values of x of this Pell equation are in A174747.
%H A174775 Vincenzo Librandi, <a href="/A174775/b174775.txt">Table of n, a(n) for n = 1..200</a>
%H A174775 <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (146,-1).
%F A174775 a(n) = 146*a(n-1)-a(n-2) with a(1)=0, a(2)=12.
%F A174775 G.f.: 12*x^2/(1-146*x+x^2).
%t A174775 LinearRecurrence[{146,-1},{0,12},30]
%o A174775 (Magma) I:=[0, 12]; [n le 2 select I[n] else 146*Self(n-1)-Self(n-2): n in [1..20]];
%Y A174775 Cf. A174747.
%K A174775 nonn,easy
%O A174775 1,2
%A A174775 _Vincenzo Librandi_, Apr 15 2010