-42240

Appears in sequences

• A triangular array made from polynomial coefficients of A049614.at n=43A118687
• 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=40A123588
• C(n+7, 7)*(n+4)*(-1)^(n+1)*16.at n=4A138332
• Integer coefficient array for polynomials related to the minimal polynomials of cos(2Pi/n). Rising powers of x.at n=158A181877
• G.f.: Limit_{K->oo} Sum_{n=-oo..+oo} x^(n-K) * (1 - x^n + n*(n+1)/6 * x^(n+K))^n.at n=53A292177
• Triangle T(n, k) read by rows: Row n gives the coefficients of the even powers in Product_{t=1..n}(2*x - (2*t - 1))*Product_{t=1..n}(2*x + (2*t - 1)).at n=16A380570