Number of nX2 0..7 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.

A202910

Number of nX2 0..7 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.

Terms

    a(0) =8a(1) =680a(2) =31984a(3) =1194376a(4) =44344428a(5) =1707628408a(6) =66085464308

External references