502545

Appears in sequences

• Half the number of (n+2) X 3 binary arrays with each 3 X 3 subblock having sum 3, 4, 5 or 6.at n=4A187309
• Half the number of (n+2)X7 binary arrays with each 3X3 subblock having sum 3, 4, 5 or 6.at n=0A187313
• T(n,k)=Half the number of (n+2)X(k+2) binary arrays with each 3X3 subblock having sum 3, 4, 5 or 6.at n=10A187317
• T(n,k)=Half the number of (n+2)X(k+2) binary arrays with each 3X3 subblock having sum 3, 4, 5 or 6.at n=14A187317
• Expansion of e.g.f. 1/(exp(x) - x^2).at n=8A352302