%I #6 Sep 28 2013 02:37:11
%S 1,2,9,58,501,5402,69909,1055458,18211401,353506802,7624471809,
%T 180889942858,4681743794301,131269240120202,3963720131525709,
%U 128234893954822258,4425253713052509201,162255367355408805602,6299173242134303391609,258136328705500135053658
%N Q_n(2) (see A104035).
%F G.f.: 1/Q(0), where Q(k) = 1 - 2*x*(2*k+1) - 5*x^2*(k+1)^2/Q(k+1); (continued fraction). - _Sergei N. Gladkovskii_, Sep 28 2013
%K nonn
%O 0,2
%A _N. J. A. Sloane_, Nov 06 2009