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Generalized Catalan numbers C(2,5;n)=C(5,2;n).
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%I #2 Mar 31 2012 13:20:12

%S 1,1,7,109,2383,61621,1755127,53192749,1683052063,54960231781,

%T 1838511095047,62680788397789,2170059386074543,76086971405595541,

%U 2696276508804038167,96415261773063801229,3474635368976138997823

%N Generalized Catalan numbers C(2,5;n)=C(5,2;n).

%C See A116873 for C(2,3;n) and the Derrida et al., Schuetz-Domany and Liggett references.

%F G.f.: (2+13*x+30*x^2*c(10*x))/((1+5*x)*(2+x)) with the g.f. c(x) for A000108 (Catalan numbers).

%K nonn,easy

%O 0,3

%A _Wolfdieter Lang_, Mar 24 2006