Equals one maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and vertical neighbors in a random 0..1 nX4 array.

A220285

Equals one maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and vertical neighbors in a random 0..1 nX4 array.

Terms

    a(0) =8a(1) =96a(2) =1411a(3) =15382a(4) =232795a(5) =3061937a(6) =40463019a(7) =533004621

External references