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 A041979 #15 Jul 09 2025 02:01:06 %S A041979 1,1,2,3,8,51,569,3465,7499,10964,18463,29427,1313251,1342678,2655929, %T A041979 3998607,10653143,67917465,757745258,4614389013,9986523284, %U A041979 14600912297,24587435581,39188347878,1748874742213,1788063090091,3536937832304,5325000922395 %N A041979 Denominators of continued fraction convergents to sqrt(512). %H A041979 Vincenzo Librandi, <a href="/A041979/b041979.txt">Table of n, a(n) for n = 0..200</a> %H A041979 <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,0,0,0,0,0,0,0,0,1331714,0,0,0,0,0,0,0,0,0,0,0,-1). %F A041979 G.f.: -(x^22 -x^21 +2*x^20 -3*x^19 +8*x^18 -51*x^17 +569*x^16 -3465*x^15 +7499*x^14 -10964*x^13 +18463*x^12 -29427*x^11 -18463*x^10 -10964*x^9 -7499*x^8 -3465*x^7 -569*x^6 -51*x^5 -8*x^4 -3*x^3 -2*x^2 -x -1) / ((x^6 -34*x^3 +1)*(x^6 +34*x^3 +1)*(x^12 +1154*x^6 +1)). - _Colin Barker_, Nov 28 2013 %t A041979 Denominator[Convergents[Sqrt[512], 30]] (* _Vincenzo Librandi_, Jan 11 2014 *) %Y A041979 Cf. A041978, A040489. %K A041979 nonn,frac,easy %O A041979 0,3 %A A041979 _N. J. A. Sloane_ %E A041979 More terms from _Colin Barker_, Nov 28 2013