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 A042413 #17 Jul 09 2025 02:45:27 %S A042413 1,10,11,54,65,119,3159,3278,6437,29026,35463,383656,20752887, %T A042413 207912526,228665413,1122574178,1351239591,2473813769,65670397585, %U A042413 68144211354,133814608939,603402647110,737217256049,7975575207600,431418278466449,4322158359872090 %N A042413 Denominators of continued fraction convergents to sqrt(734). %H A042413 Vincenzo Librandi, <a href="/A042413/b042413.txt">Table of n, a(n) for n = 0..200</a> %H A042413 <a href="/index/Rec#order_24">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 20788350, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1). %F A042413 a(n) = 20788350*a(n-12) - a(n-24) for n>23. - _Vincenzo Librandi_, Jan 21 2014 %t A042413 Denominator/@Convergents[Sqrt[734], 30] (* _Harvey P. Dale_, Apr 23 2011 *) %Y A042413 Cf. A042412. %K A042413 nonn,frac,easy %O A042413 0,2 %A A042413 _N. J. A. Sloane_ %E A042413 More terms from _Vincenzo Librandi_, Jan 21 2014