167.
5-5 = 0 = 1的平方-1
14-5 = 9 = 3的平方
38-14 = 24 = 5的平方-1
87-38 = 49 = 7的平方
所以下面的数（设为x）应该有
x-87 = 80 = 9的平方-1
数字推理题:5,5,14,38,87,()
167.
5-5 = 0 = 1的平方-1
14-5 = 9 = 3的平方
38-14 = 24 = 5的平方-1
87-38 = 49 = 7的平方
所以下面的数（设为x）应该有
x-87 = 80 = 9的平方-1