4071834

Appears in sequences

• Number of (n+2)X(n+2) binary arrays with each 3X3 subblock singular.at n=2A186043
• Number of (n+2) X 5 binary arrays with each 3 X 3 subblock singular.at n=2A186046
• T(n,k)=Number of (n+2)X(k+2) binary arrays with each 3X3 subblock singular.at n=12A186052