plot%20(405/16%20*%20(10/m-1/(m-1))*(10/(m-1)-1/(m-2))*(1%2B45*(10/(m-1)-1/(m-2))/(2*9*log(10)))%5E(m-2)/(9*log(10))%5E2)%20from%20m%20=%203%20to%2040%20