q^M;

-q*q^M/(-1+q)+q^2*(q^M)^2/(-1+q);

-q^2*(q^2-q-1)*q^M/((-1+q)*(q^2-1))-q^3*(q^M)^2/(q^2-2*q+1)+q^6*(q^M)^3/(q^3-q^2-q+1); 

-q^3*(q^6-2*q^4-q^3+2*q+1)*q^M/((-1+q)*(q^5-q^3-q^2+1))-q^4*(q^2-q-1)*(q^M)^2/((q^2-2*q+1)*(q^2-1))-q^7*(q^M)^3/(q^4-2*q^3+2*q-1)+q^12*(q^M)^4/(q^6-q^5-q^4+q^2+q-1)

-q^4*(q^12-2*q^9-3*q^8+q^6+5*q^5+3*q^4-2*q^2-3*q-1)*q^M/((-1+q)*(q^9-q^7-q^6-q^5+q^4+q^3+q^2-1))-q^5*(q^6-2*q^4-q^3+2*q+1)*(q^M)^2/((q^3-q^2-q+1)*(q^4-q^3-q+1))-(q^2-q-1)*q^8*(q^M)^3/((q^4-2*q^3+2*q-1)*(q^2-1))-q^13*(q^M)^4/(q^7-2*q^6+q^4+q^3-2*q+1)+q^20*(q^M)^5/(q^10-q^9-q^8+2*q^5-q^2-q+1)