Generalized Catalan numbers C(2,8;n)=C(8,2;n).

A116878

Generalized Catalan numbers C(2,8;n)=C(8,2;n).

Terms

    a(0) =1a(1) =1a(2) =10a(3) =244a(4) =8488a(5) =350416a(6) =15951520a(7) =772998976a(8) =39116022400

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