Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,4,0,0,1 for x=0,1,2,3,4.

A197097

Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,4,0,0,1 for x=0,1,2,3,4.

Terms

    a(0) =13a(1) =1439a(2) =45843a(3) =2253537a(4) =105551542a(5) =4886330995a(6) =227951140324

External references