A_K5_14 := (M^468)*(-1*M^6) + (L^1*M^434)*(-2*M^6 + 3*M^8 - 1*M^10) + (L^2*M^400)*(1*M^4 - 1*M^6 + 14*M^8 - 9*M^10 + 2*M^12) + (L^3*M^366)*(2*M^4 + 5*M^8 - 13*M^10 + 7*M^12 - 1*M^14) + (L^4*M^332)*(2*M^4 - 8*M^6 - 29*M^8 + 17*M^10 - 3*M^12) + (L^5*M^298)*(-1*M^2 + 6*M^4 - 29*M^6 + 26*M^8 + 1*M^10 - 3*M^12) + (L^6*M^264)*(-1*M^2 - 6*M^4 + 24*M^6 + 29*M^8 - 11*M^10) + (L^7*M^230)*(-2*M^2 + 30*M^6 - 30*M^8 + 2*M^12) + (L^8*M^196)*(11*M^4 - 29*M^6 - 24*M^8 + 6*M^10 + 1*M^12) + (L^9*M^162)*(3*M^2 - 1*M^4 - 26*M^6 + 29*M^8 - 6*M^10 + 1*M^12) + (L^10*M^128)*(3*M^2 - 17*M^4 + 29*M^6 + 8*M^8 - 2*M^10) + (L^11*M^94)*(1 - 7*M^2 + 13*M^4 - 5*M^6 - 2*M^10) + (L^12*M^60)*(-2*M^2 + 9*M^4 - 14*M^6 + 1*M^8 - 1*M^10) + (L^13*M^26)*(1*M^4 - 3*M^6 + 2*M^8) + (L^14*M^(-8))*(1*M^8);