1 1 1 1 .1 -1 2 0 0 ...0 -1 0 3 0 ...0 ............ -1 0 0 0 ...n 第一列 +【1/2(第二列)+1/3(第3列)+.+1/n(第n列)】: 1+1/2+...+1/n 1 1 1 ....1 0 2 0 0 ...0 0 0 3 0 ...0 ............. 0 0 0 0 ...n =(1+1/2+...+1/n )n!