Triangle read by rows: T(n, k) is the coefficient of x^k in the polynomial 1 - T_n(x)^2, where T_n(x) is the n-th Chebyshev polynomial of the first kind.

A123583

Triangle read by rows: T(n, k) is the coefficient of x^k in the polynomial 1 - T_n(x)^2, where T_n(x) is the n-th Chebyshev polynomial of the first kind.

Terms

    a(0) =0a(1) =1a(2) =0a(3) =-1a(4) =0a(5) =0a(6) =4a(7) =0a(8) =-4a(9) =1a(10) =0a(11) =-9a(12) =0a(13) =24a(14) =0a(15) =-16a(16) =0a(17) =0a(18) =16a(19) =0a(20) =-80a(21) =0a(22) =128a(23) =0a(24) =-64a(25) =1a(26) =0a(27) =-25a(28) =0a(29) =200

External references