Akm = {{0, 0, (1/5)*(Ea1p + (2)*(Ee1pp + Ee2p))} , 
       {2, 0, Ea1p + Ee1pp + (-2)*(Ee2p)} , 
       {4, 0, (3/5)*((3)*(Ea1p) + (-4)*(Ee1pp) + Ee2p)} }