143511784

Appears in sequences

• 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.at n=5A221288
• Equals two maps: number of 6Xn binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..3 6Xn array.at n=4A221294