Equals one maps: number of 3Xn binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..1 3Xn array.

A220581

Equals one maps: number of 3Xn binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..1 3Xn array.

Terms

    a(0) =1a(1) =32a(2) =91a(3) =1441a(4) =8334a(5) =64497a(6) =436288a(7) =3036588a(8) =21023792a(9) =146254012a(10) =1011489196a(11) =7016643627a(12) =48603225482a(13) =336693889957

External references