37200870

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*10^j.at n=29A038300
• Triangular array T(n,k) read by rows, giving number of labeled free trees such that the root is smaller than all its children, with respect to the number n of vertices and to the degree k of the root.at n=38A071210