asking for help
Emeric Deutsch
deutsch at duke.poly.edu
Thu Mar 22 18:12:19 CET 2007
Dear seqfans,
The following is well-known:
If C(z)=[1-sqrt(1-4z)]/(2z) is the Catalan function, then
the coefficient of z^n in the expansion of C^q/sqrt(1-4z)
is binom(2n+q,n).
Is anything known about
the coefficient of z^n in the expansion of C^q/(1-4z)^(3/2) ?
For the cases q=1, q=2, q=3 there are formulas in
A000531, A029760, A045720, respectively.
Many thanks for any information you may have.
Emeric
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