How to output in symmetric functions over QQ['t' ] in the form of 'c*t^i' ? and extract the coefficients c of corresponding terms.Such the following example, we want to output "( 2*s[9, 1] + s[10])*t^4 +s[2, 2, 2, 2] * t^3+s[2, 2, 2]+t^2". [closed]
t^2s[2, 2, 2] + t^3s[2, 2, 2, 2] + 2t^4s[9, 1] + t^4*s[10]