0,2

Table of n, a(n) for n=0..5.

(empirical) set p,q,r to n,10,10 (in any order) in s=p+q+r-1; a(n) = product {i in 0..r-1} (binomial(s,p+i)*i!/(s-i)^(r-i-1))

Sequence in context: A024754 A024762 A245863 * A244173 A245795 A251449

Adjacent sequences: A140930 A140931 A140932 * A140934 A140935 A140936

nonn

R. H. Hardin, Jul 05 2008

approved