922680

Appears in sequences

• Constant term in the expansion of (Sum_{k=0..n} k*(x^k + x^(-k)))^5.at n=5A318119
• Constant term in the expansion of (Sum_{k=0..n} k*(x^k + x^(-k)))^n.at n=5A318793
• Square array A(n,k), n>=0, k>=0, read by antidiagonals, where A(n,k) is the constant term in the expansion of (Sum_{j=0..n} j*(x^j + x^(-j)))^k.at n=60A322549