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 A049346 #25 Nov 07 2021 11:02:21 %S A049346 0,1,0,0,-1,0,0,1,0,1,-1,0,-2,1,-1,3,-2,3,-4,4,-6,7,-8,11,-13,16,-20, %T A049346 24,-31,37,-46,58,-70,88,-108,133,-167,204,-252,315,-386,479,-594,731, %U A049346 -909,1122,-1386,1720,-2124,2628,-3254,4022,-4980,6160,-7618,9432,-11665,14433,-17860,22093,-27341,33824,-41847 %N A049346 Coefficient of x^(-n) in expansion of continued fraction 0, x, x^2, x^3, x^4, ... . %C A049346 Absolute values are essentially A227310. - _Franklin T. Adams-Watters_, Oct 31 2014 %H A049346 Seiichi Manyama, <a href="/A049346/b049346.txt">Table of n, a(n) for n = 0..10000</a> %F A049346 G.f.: 1 - 1/G(0), where G(k)= 1 + x^(k+1)/(1 - x^(k+1)/G(k+1) ); (continued fraction). - _Sergei N. Gladkovskii_, Jun 29 2013 %F A049346 G.f.: W(0) - 1, where W(k) = 1 - x^(k+1)/( x^(k+1) - 1/(1 - x^(k+1)/( x^(k+1) + 1/W(k+1) ))); (continued fraction). - _Sergei N. Gladkovskii_, Aug 27 2013 %K A049346 sign %O A049346 0,13 %A A049346 Alain Lasjauniasith (lasjauni(AT)math.u-bordeaux.fr.yyy.com) %E A049346 Added more terms, _Joerg Arndt_, Jun 29 2013