Generalized Catalan numbers 9*x*A(x)^2 -A(x) +1 -8*x=0.

A068771

Generalized Catalan numbers 9*x*A(x)^2 -A(x) +1 -8*x=0.

Terms

    a(0) =1a(1) =1a(2) =18a(3) =333a(4) =6318a(5) =122634a(6) =2429028a(7) =48974949a(8) =1002875094a(9) =20814628158a(10) =437088964860

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