Equals one maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..2 nX4 array.
A220808
Equals one maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..2 nX4 array.
Terms
- a(0) =8a(1) =168a(2) =3466a(3) =62400a(4) =1037774a(5) =16734366a(6) =268264812a(7) =4294285044a(8) =68716748256
External references
- oeis: A220808