70767

Appears in sequences

• Half the number of (n+2) X 3 binary arrays with each 3 X 3 subblock having sum 4 or 5.at n=4A186817
• Half the number of (n+2)X7 binary arrays with each 3X3 subblock having sum 4 or 5.at n=0A186821
• T(n,k)=Half the number of (n+2)X(k+2) binary arrays with each 3X3 subblock having sum 4 or 5.at n=10A186825
• T(n,k)=Half the number of (n+2)X(k+2) binary arrays with each 3X3 subblock having sum 4 or 5.at n=14A186825
• a(n) = Sum_{k=2..n-1} k*A259698(n,k).at n=10A259700
• A331757(n)/2.at n=25A331758