??? makelist(choose(2*n,n)/sum(choose(2*k,k),k,0,n-1),n,1,11); [2, 2, (20/9), (70/29), (28/11), (308/117), (1144/425), (1430/523), (48620/17577), (184756/66197), (235144/83651)] At 06:40 PM 11/18/2002 +0100, you wrote:
it seems to be 3, but why?:
(2n choose n) /( Sum(k=0..n-1, (2k choose k) ) or (2n choose n) /(1+Sum(k=0..n-1, (2k choose k) )
hmmm, Mathematica 4.0.1.0 doesn't seem to handle it.
Wouter.
email: wouter.meeussen@vandemoortele.com
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