167909728

Appears in sequences

• Number of (n+2)X(n+2) binary arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum.at n=4A187931
• Number of (n+2)X7 binary arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum.at n=4A187936