-329472

Appears in sequences

• Triangle read by rows: T(n, k) is the coefficient of x^k in the polynomial 1 - ChT(n, x^(1/2))^2, where ChT(n, x) is the n-th Chebyshev polynomial of the first kind, evaluated at x (0 <= k <= n).at n=50A123588
• C(n+9, 9)*(n+5)*(-1)^(n+1)*256/5.at n=4A138333