Triangular sequence of coefficients of T_n(2^n*x) where T_n is the n-th Chebyshev polynomial.

Terms

a(0) =1a(1) =0a(2) =2a(3) =-1a(4) =0a(5) =32a(6) =0a(7) =-24a(8) =0a(9) =2048a(10) =1a(11) =0a(12) =-2048a(13) =0a(14) =524288a(15) =0a(16) =160a(17) =0a(18) =-655360a(19) =0a(20) =536870912a(21) =-1a(22) =0a(23) =73728a(24) =0a(25) =-805306368a(26) =0a(28) =0a(29) =-896a(30) =0