844691407

Appears in sequences

• Sum of squares of coefficients in full expansion of (z1+z2+...+zn)^n.at n=7A033935
• A(n,k) is the sum of k-th powers of coefficients in full expansion of (z_1+z_2+...+z_n)^n; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=52A245397