Equals one maps: number of n X 4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..1 n X 4 array.
A220458
Equals one maps: number of n X 4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..1 n X 4 array.
Terms
- a(0) =8a(1) =74a(2) =691a(3) =6255a(4) =58217a(5) =530196a(6) =4787009a(7) =42979644a(8) =385002942a(9) =3443191561a(10) =30764444125
External references
- oeis: A220458