567240

Appears in sequences

• Expansion of 1/((1-x) * (1-2*x) * (1-3*x) * (1-4*x))^2.at n=6A383842
• Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of 1/Product_{j=0..k} (1 - j*x)^2.at n=61A383843