Coefficient array for the fourth power of Chebyshev's S-polynomials as a function of x^2.

Terms

a(0) =1a(1) =0a(2) =0a(3) =1a(4) =1a(5) =-4a(6) =6a(7) =-4a(8) =1a(9) =0a(10) =0a(11) =16a(12) =-32a(13) =24a(14) =-8a(15) =1a(16) =1a(17) =-12a(18) =58a(19) =-144a(20) =195a(21) =-144a(22) =58a(23) =-12a(24) =1a(25) =0a(26) =0a(27) =81a(28) =-432a(29) =972