0,2

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

(empirical) set p,q,r to n,11,10 (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: A172765 A205632 A205334 * A294858 A274900 A284081

Adjacent sequences: A140939 A140940 A140941 * A140943 A140944 A140945

nonn

R. H. Hardin, Jul 05 2008

approved