Number of nX7 0..2 arrays avoiding the pattern z-1 z-1 z in any row, column or nw-to-se diagonal.

A206733

Number of nX7 0..2 arrays avoiding the pattern z-1 z-1 z in any row, column or nw-to-se diagonal.

Terms

    a(0) =1440a(1) =2073600a(2) =1384146457a(3) =908849973079

External references