1×4格牌覆盖棋盘的计数

Enumeration of 1×4 Checks Covering m×n Checker Boards

设 f(m,n)为 1× 4格牌覆盖 m× n棋盘的方法数 ,用递推的方法给出 f(m,n)(m=4,5,6,7)

Suppose f(m,n)is the enumeration of 1×4 checks covering m×n checker boards. This paper gets the recurrence formula and generating function of f(m,n)(m=4、5、6、7).