Half the number of n X n binary arrays with no 3X3 submatrix formed with any three rows and columns equal to J-I.
A213412
Half the number of n X n binary arrays with no 3X3 submatrix formed with any three rows and columns equal to J-I.
Terms
- a(0) =1a(1) =8a(2) =253a(3) =28952a(4) =10142461a(5) =9107867048
External references
- oeis: A213412