Equals two maps: number of 7Xn binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..3 7Xn array.
A221295
Equals two maps: number of 7Xn binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..3 7Xn array.
Terms
- a(0) =1a(1) =1081a(2) =119972a(3) =22931365a(4) =4129628435a(5) =618825190371
External references
- oeis: A221295