Equals two maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..3 nX5 array.
A221288
Equals two maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..3 nX5 array.
Terms
- a(0) =7a(1) =200a(2) =5912a(3) =172904a(4) =4983598a(5) =143511784a(6) =4129628435a(7) =118813480496
External references
- oeis: A221288