2135070

Appears in sequences

• Expansion of 1/((1-9*x)*(1-10*x)*(1-11*x)).at n=5A020982
• Triangle read by rows. T(n, k) = 1 if n = k, otherwise T(n, k) = Sum_{j=0..k-1} (-1)^(j - k - 1) * (n + j + 1)^(n-1) / (j! * (k - 1 - j)!).at n=39A360177