A_K5_1 :=
(M^(-8))*(-1*M^8)
+ (L^1*M^24)*(-1*M^8 + 1*M^10)
+ (L^2*M^56)*(9*M^8 - 3*M^10 + 1*M^12)
+ (L^3*M^88)*(1*M^4 - 3*M^6 + 12*M^8 - 14*M^10 + 5*M^12 - 1*M^14)
+ (L^4*M^120)*(1*M^4 - 7*M^6 - 18*M^8 + 5*M^10 - 2*M^12)
+ (L^5*M^152)*(-1*M^4 - 7*M^6 + 2*M^8 + 6*M^10)
+ (L^6*M^184)*(-1*M^4 + 17*M^6 + 20*M^8 - 2*M^10 + 1*M^12)
+ (L^7*M^216)*(-2*M^2 + 14*M^4 - 12*M^6 + 12*M^8 - 14*M^10 
    + 2*M^12)
+ (L^8*M^248)*(-1*M^2 + 2*M^4 - 20*M^6 - 17*M^8 + 1*M^10)
+ (L^9*M^280)*(-6*M^4 - 2*M^6 + 7*M^8 + 1*M^10)
+ (L^10*M^312)*(2*M^2 - 5*M^4 + 18*M^6 + 7*M^8 - 1*M^10)
+ (L^11*M^344)*(1 - 5*M^2 + 14*M^4 - 12*M^6 + 3*M^8 - 1*M^10)
+ (L^12*M^376)*(-1*M^2 + 3*M^4 - 9*M^6)
+ (L^13*M^408)*(-1*M^4 + 1*M^6)
+ (L^14*M^440)*(1*M^6);