>>202
�@f(a,n,X)=[X/a]+[[X/a]/(n-1)]+[{[X/a]-[[X/a]/(n-1)]*(n-1)-1}/(n-1)] ※[ ]はガウス
�Af(120,8,6000)=[6000/120]+[[6000/120]/(8-1)]+[{[6000/120]-[[6000/120]/(8-1)]*(8-1)-1}/(8-1)]
          =50+[50/7]+[{50-[50/7]*7-1}/7]
          =50+7+0
          =57