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 A042890 #15 Jun 26 2022 23:49:06 %S A042890 31,94,125,1094,5595,6689,12284,43541,317071,360612,677683,5104393, %T A042890 15990862,21095255,37086117,206525840,1689292837,1895818677, %U A042890 7376748868,459254248493,1385139494347,1844393742840 %N A042890 Numerators of continued fraction convergents to sqrt(977). %H A042890 Vincenzo Librandi, <a href="/A042890/b042890.txt">Table of n, a(n) for n = 0..200</a> %H A042890 <a href="/index/Rec#order_38">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14753497736, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1). %F A042890 a(n) = 14753497736*a(n-19) - a(n-38) for n > 37. [_Bruno Berselli_, Dec 08 2013] %t A042890 Numerator[Convergents[Sqrt[977], 30]] (* _Vincenzo Librandi_, Dec 08 2013 *) %Y A042890 Cf. A042891. %K A042890 nonn,cofr,frac,easy %O A042890 0,1 %A A042890 _N. J. A. Sloane_