63是4的三次方减126是3的三次方减17是2的三次方减10是1的三次方减1-1是0的三次方减1-2是-1的三次方减1-9是-2的三次方减1-28是-3的三次方减1所以答案是-28
4^3-1 3^3-1 2^3-1 0^3-1 -1^3-1 -2^3-1 ?=-3^3-1=-28
