[seqfan] A misprint in formula for A001791

Vladimir Shevelev shevelev at bgu.ac.il
Sun Sep 5 15:24:05 CEST 2010

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I read: a(n)=C(2n, n)-C(n); - Paul Barry (pbarry(AT)wit.ie), Apr 21 2005. 

I think that Paul wanted to write: a(n)=C(2*n,n)-C(2*n-1,n).

Regards,
Vladimir 

 Shevelev Vladimir‎

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