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Q_n(2) (see A104035).
1

%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