30631134

Appears in sequences

• Number of (n+2)X4 binary arrays with each 3X3 subblock nonsingular.at n=6A185527
• Number of (n+2) X 9 binary arrays with each 3 X 3 subblock nonsingular.at n=1A185532
• T(n,k)=Number of (n+2)X(k+2) binary arrays with each 3X3 subblock nonsingular.at n=29A185534