A formula for the generalized Catalan Number . The general formula is

where is a Binomial Coefficient, although Jonah's original formula corresponded to , (Hilton and Pederson 1991).

**References**

Hilton, P. and Pederson, J. ``Catalan Numbers, Their Generalization, and Their Uses.'' *Math. Intel.* **13**, 64-75, 1991.

© 1996-9

1999-05-25