Coefficient array for square of Chebyshev S-polynomials.

Terms

a(0) =1a(1) =1a(2) =1a(3) =-2a(4) =1a(5) =4a(6) =-4a(7) =1a(8) =1a(9) =-6a(10) =11a(11) =-6a(12) =1a(13) =9a(14) =-24a(15) =22a(16) =-8a(17) =1a(18) =1a(19) =-12a(20) =46a(21) =-62a(22) =37a(23) =-10a(24) =1a(25) =16a(26) =-80a(27) =148a(28) =-128a(29) =56