 E_0 & E_0             \end{array}             \right|=0,             \quad             \left|             \begin{array}{ccc}             E_0 & E_0 & E_0             \\             E_0 & E_0 & E_0             \\             E_0 & E_0 & E_0             \end{array}             \right|=0,             \dots             \quad\text{for}\quad n=0,0,0,\dots